vppinfra: native AES-CTR implementation

Type: feature
Change-Id: I7ef3277edaeb266fbd3c8c9355d4443002ed2311
Signed-off-by: Damjan Marion <damarion@cisco.com>

6 files changed, 868 insertions, 193 deletions

diff --git a/src/vppinfra/CMakeLists.txt b/src/vppinfra/CMakeLists.txt
index d64847161bd..6976ac59fc5 100644
--- a/src/vppinfra/CMakeLists.txt
+++ b/src/vppinfra/CMakeLists.txt
@@ -132,6 +132,7 @@ set(VPPINFRA_HEADERS
   crypto/ghash.h
   crypto/aes.h
   crypto/aes_cbc.h
+  crypto/aes_ctr.h
   crypto/aes_gcm.h
   crypto/poly1305.h
   dlist.h
@@ -285,6 +286,7 @@ endif(VPP_BUILD_VPPINFRA_TESTS)
 
 set(test_files
   test/aes_cbc.c
+  test/aes_ctr.c
   test/aes_gcm.c
   test/poly1305.c
   test/array_mask.c
diff --git a/src/vppinfra/crypto/aes.h b/src/vppinfra/crypto/aes.h
index a5e286e4c6e..0aa154187a8 100644
--- a/src/vppinfra/crypto/aes.h
+++ b/src/vppinfra/crypto/aes.h
@@ -15,8 +15,8 @@
  *------------------------------------------------------------------
  */
 
-#ifndef __aesni_h__
-#define __aesni_h__
+#ifndef __aes_h__
+#define __aes_h__
 
 typedef enum
 {
@@ -35,7 +35,7 @@ aes_block_load (u8 * p)
 }
 
 static_always_inline u8x16
-aes_enc_round (u8x16 a, u8x16 k)
+aes_enc_round_x1 (u8x16 a, u8x16 k)
 {
 #if defined (__AES__)
   return (u8x16) _mm_aesenc_si128 ((__m128i) a, (__m128i) k);
@@ -97,7 +97,7 @@ aes_dec_last_round_x2 (u8x32 a, u8x32 k)
 #endif
 
 static_always_inline u8x16
-aes_enc_last_round (u8x16 a, u8x16 k)
+aes_enc_last_round_x1 (u8x16 a, u8x16 k)
 {
 #if defined (__AES__)
   return (u8x16) _mm_aesenclast_si128 ((__m128i) a, (__m128i) k);
@@ -109,13 +109,13 @@ aes_enc_last_round (u8x16 a, u8x16 k)
 #ifdef __x86_64__
 
 static_always_inline u8x16
-aes_dec_round (u8x16 a, u8x16 k)
+aes_dec_round_x1 (u8x16 a, u8x16 k)
 {
   return (u8x16) _mm_aesdec_si128 ((__m128i) a, (__m128i) k);
 }
 
 static_always_inline u8x16
-aes_dec_last_round (u8x16 a, u8x16 k)
+aes_dec_last_round_x1 (u8x16 a, u8x16 k)
 {
   return (u8x16) _mm_aesdeclast_si128 ((__m128i) a, (__m128i) k);
 }
@@ -133,8 +133,8 @@ aes_encrypt_block (u8x16 block, const u8x16 * round_keys, aes_key_size_t ks)
   int rounds = AES_KEY_ROUNDS (ks);
   block ^= round_keys[0];
   for (int i = 1; i < rounds; i += 1)
-    block = aes_enc_round (block, round_keys[i]);
-  return aes_enc_last_round (block, round_keys[rounds]);
+    block = aes_enc_round_x1 (block, round_keys[i]);
+  return aes_enc_last_round_x1 (block, round_keys[rounds]);
 }
 
 static_always_inline u8x16
@@ -427,13 +427,67 @@ aes_key_enc_to_dec (u8x16 * ke, u8x16 * kd, aes_key_size_t ks)
 
   kd[rounds / 2] = aes_inv_mix_column (ke[rounds / 2]);
 }
+#if defined(__VAES__) && defined(__AVX512F__)
+#define N_AES_LANES		   4
+#define aes_load_partial(p, n)	   u8x64_load_partial ((u8 *) (p), n)
+#define aes_store_partial(v, p, n) u8x64_store_partial (v, (u8 *) (p), n)
+#define aes_reflect(r)		   u8x64_reflect_u8x16 (r)
+typedef u8x64 aes_data_t;
+typedef u8x64u aes_mem_t;
+typedef u32x16 aes_counter_t;
+#elif defined(__VAES__)
+#define N_AES_LANES		   2
+#define aes_load_partial(p, n)	   u8x32_load_partial ((u8 *) (p), n)
+#define aes_store_partial(v, p, n) u8x32_store_partial (v, (u8 *) (p), n)
+#define aes_reflect(r)		   u8x32_reflect_u8x16 (r)
+typedef u8x32 aes_data_t;
+typedef u8x32u aes_mem_t;
+typedef u32x8 aes_counter_t;
+#else
+#define N_AES_LANES		   1
+#define aes_load_partial(p, n)	   u8x16_load_partial ((u8 *) (p), n)
+#define aes_store_partial(v, p, n) u8x16_store_partial (v, (u8 *) (p), n)
+#define aes_reflect(r)		   u8x16_reflect (r)
+typedef u8x16 aes_data_t;
+typedef u8x16u aes_mem_t;
+typedef u32x4 aes_counter_t;
+#endif
 
-#endif /* __aesni_h__ */
+#define N_AES_BYTES (N_AES_LANES * 16)
 
-/*
- * fd.io coding-style-patch-verification: ON
- *
- * Local Variables:
- * eval: (c-set-style "gnu")
- * End:
- */
+typedef union
+{
+  u8x16 x1;
+  u8x32 x2;
+  u8x64 x4;
+  u8x16 lanes[4];
+} aes_expaned_key_t;
+
+static_always_inline void
+aes_enc_round (aes_data_t *r, const aes_expaned_key_t *ek, uword n_blocks)
+{
+  for (int i = 0; i < n_blocks; i++)
+#if N_AES_LANES == 4
+    r[i] = aes_enc_round_x4 (r[i], ek->x4);
+#elif N_AES_LANES == 2
+    r[i] = aes_enc_round_x2 (r[i], ek->x2);
+#else
+    r[i] = aes_enc_round_x1 (r[i], ek->x1);
+#endif
+}
+
+static_always_inline void
+aes_enc_last_round (aes_data_t *r, aes_data_t *d, const aes_expaned_key_t *ek,
+		    uword n_blocks)
+{
+  for (int i = 0; i < n_blocks; i++)
+#if N_AES_LANES == 4
+    d[i] ^= r[i] = aes_enc_last_round_x4 (r[i], ek->x4);
+#elif N_AES_LANES == 2
+    d[i] ^= r[i] = aes_enc_last_round_x2 (r[i], ek->x2);
+#else
+    d[i] ^= r[i] = aes_enc_last_round_x1 (r[i], ek->x1);
+#endif
+}
+
+#endif /* __aes_h__ */
diff --git a/src/vppinfra/crypto/aes_cbc.h b/src/vppinfra/crypto/aes_cbc.h
index 3f0f1f1f797..64bc071e910 100644
--- a/src/vppinfra/crypto/aes_cbc.h
+++ b/src/vppinfra/crypto/aes_cbc.h
@@ -30,8 +30,8 @@ clib_aes_cbc_encrypt (const aes_cbc_key_data_t *kd, const u8 *src, uword len,
 #if __x86_64__
       r = u8x16_xor3 (r, *(u8x16u *) (src + i), k[0]);
       for (j = 1; j < rounds; j++)
-	r = aes_enc_round (r, k[j]);
-      r = aes_enc_last_round (r, k[rounds]);
+	r = aes_enc_round_x1 (r, k[j]);
+      r = aes_enc_last_round_x1 (r, k[rounds]);
 #else
       r ^= *(u8x16u *) (src + i);
       for (j = 1; j < rounds - 1; j++)
@@ -85,16 +85,16 @@ aes_cbc_dec (const u8x16 *k, u8x16u *src, u8x16u *dst, u8x16u *iv, int count,
 
       for (int i = 1; i < rounds; i++)
 	{
-	  r[0] = aes_dec_round (r[0], k[i]);
-	  r[1] = aes_dec_round (r[1], k[i]);
-	  r[2] = aes_dec_round (r[2], k[i]);
-	  r[3] = aes_dec_round (r[3], k[i]);
+	  r[0] = aes_dec_round_x1 (r[0], k[i]);
+	  r[1] = aes_dec_round_x1 (r[1], k[i]);
+	  r[2] = aes_dec_round_x1 (r[2], k[i]);
+	  r[3] = aes_dec_round_x1 (r[3], k[i]);
 	}
 
-      r[0] = aes_dec_last_round (r[0], k[rounds]);
-      r[1] = aes_dec_last_round (r[1], k[rounds]);
-      r[2] = aes_dec_last_round (r[2], k[rounds]);
-      r[3] = aes_dec_last_round (r[3], k[rounds]);
+      r[0] = aes_dec_last_round_x1 (r[0], k[rounds]);
+      r[1] = aes_dec_last_round_x1 (r[1], k[rounds]);
+      r[2] = aes_dec_last_round_x1 (r[2], k[rounds]);
+      r[3] = aes_dec_last_round_x1 (r[3], k[rounds]);
 #else
       for (int i = 0; i < rounds - 1; i++)
 	{
@@ -125,8 +125,8 @@ aes_cbc_dec (const u8x16 *k, u8x16u *src, u8x16u *dst, u8x16u *iv, int count,
 #if __x86_64__
       r[0] ^= k[0];
       for (int i = 1; i < rounds; i++)
-	r[0] = aes_dec_round (r[0], k[i]);
-      r[0] = aes_dec_last_round (r[0], k[rounds]);
+	r[0] = aes_dec_round_x1 (r[0], k[i]);
+      r[0] = aes_dec_last_round_x1 (r[0], k[rounds]);
 #else
       c[0] = r[0] = src[0];
       for (int i = 0; i < rounds - 1; i++)
@@ -469,8 +469,8 @@ aes2_cbc_dec (const u8x16 *k, u8x32u *src, u8x32u *dst, u8x16u *iv, int count,
     {
       u8x16 rl = *(u8x16u *) src ^ k[0];
       for (i = 1; i < rounds; i++)
-	rl = aes_dec_round (rl, k[i]);
-      rl = aes_dec_last_round (rl, k[i]);
+	rl = aes_dec_round_x1 (rl, k[i]);
+      rl = aes_dec_last_round_x1 (rl, k[i]);
       *(u8x16u *) dst = rl ^ u8x32_extract_hi (f);
     }
 }
diff --git a/src/vppinfra/crypto/aes_ctr.h b/src/vppinfra/crypto/aes_ctr.h
new file mode 100644
index 00000000000..74a9f96d90d
--- /dev/null
+++ b/src/vppinfra/crypto/aes_ctr.h
@@ -0,0 +1,190 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright(c) 2024 Cisco Systems, Inc.
+ */
+
+#ifndef __crypto_aes_ctr_h__
+#define __crypto_aes_ctr_h__
+
+#include <vppinfra/clib.h>
+#include <vppinfra/vector.h>
+#include <vppinfra/cache.h>
+#include <vppinfra/string.h>
+#include <vppinfra/crypto/aes.h>
+
+typedef struct
+{
+  const aes_expaned_key_t exp_key[AES_KEY_ROUNDS (AES_KEY_256) + 1];
+} aes_ctr_key_data_t;
+
+typedef struct
+{
+  const aes_expaned_key_t exp_key[AES_KEY_ROUNDS (AES_KEY_256) + 1];
+  aes_counter_t ctr;		   /* counter (reflected) */
+  u8 keystream_bytes[N_AES_BYTES]; /* keystream leftovers */
+  u32 n_keystream_bytes;	   /* number of keystream leftovers */
+} aes_ctr_ctx_t;
+
+static_always_inline aes_counter_t
+aes_ctr_one_block (aes_ctr_ctx_t *ctx, aes_counter_t ctr, const u8 *src,
+		   u8 *dst, u32 n_parallel, u32 n_bytes, int rounds, int last)
+{
+  u32 __clib_aligned (N_AES_BYTES)
+  inc[] = { N_AES_LANES, 0, 0, 0, N_AES_LANES, 0, 0, 0,
+	    N_AES_LANES, 0, 0, 0, N_AES_LANES, 0, 0, 0 };
+  const aes_expaned_key_t *k = ctx->exp_key;
+  const aes_mem_t *sv = (aes_mem_t *) src;
+  aes_mem_t *dv = (aes_mem_t *) dst;
+  aes_data_t d[4], t[4];
+  u32 r;
+
+  n_bytes -= (n_parallel - 1) * N_AES_BYTES;
+
+  /* AES First Round */
+  for (int i = 0; i < n_parallel; i++)
+    {
+#if N_AES_LANES == 4
+      t[i] = k[0].x4 ^ (u8x64) aes_reflect ((u8x64) ctr);
+#elif N_AES_LANES == 2
+      t[i] = k[0].x2 ^ (u8x32) aes_reflect ((u8x32) ctr);
+#else
+      t[i] = k[0].x1 ^ (u8x16) aes_reflect ((u8x16) ctr);
+#endif
+      ctr += *(aes_counter_t *) inc;
+    }
+
+  /* Load Data */
+  for (int i = 0; i < n_parallel - last; i++)
+    d[i] = sv[i];
+
+  if (last)
+    d[n_parallel - 1] =
+      aes_load_partial ((u8 *) (sv + n_parallel - 1), n_bytes);
+
+  /* AES Intermediate Rounds */
+  for (r = 1; r < rounds; r++)
+    aes_enc_round (t, k + r, n_parallel);
+
+  /* AES Last Round */
+  aes_enc_last_round (t, d, k + r, n_parallel);
+
+  /* Store Data */
+  for (int i = 0; i < n_parallel - last; i++)
+    dv[i] = d[i];
+
+  if (last)
+    {
+      aes_store_partial (d[n_parallel - 1], dv + n_parallel - 1, n_bytes);
+      *(aes_data_t *) ctx->keystream_bytes = t[n_parallel - 1];
+      ctx->n_keystream_bytes = N_AES_BYTES - n_bytes;
+    }
+
+  return ctr;
+}
+
+static_always_inline void
+clib_aes_ctr_init (aes_ctr_ctx_t *ctx, const aes_ctr_key_data_t *kd,
+		   const u8 *iv, aes_key_size_t ks)
+{
+  u32x4 ctr = (u32x4) u8x16_reflect (*(u8x16u *) iv);
+#if N_AES_LANES == 4
+  ctx->ctr = (aes_counter_t) u32x16_splat_u32x4 (ctr) +
+	     (u32x16){ 0, 0, 0, 0, 1, 0, 0, 0, 2, 0, 0, 0, 3, 0, 0, 0 };
+#elif N_AES_LANES == 2
+  ctx->ctr = (aes_counter_t) u32x8_splat_u32x4 (ctr) +
+	     (u32x8){ 0, 0, 0, 0, 1, 0, 0, 0 };
+#else
+  ctx->ctr = ctr;
+#endif
+  for (int i = 0; i < AES_KEY_ROUNDS (ks) + 1; i++)
+    ((aes_expaned_key_t *) ctx->exp_key)[i] = kd->exp_key[i];
+  ctx->n_keystream_bytes = 0;
+}
+
+static_always_inline void
+clib_aes_ctr_transform (aes_ctr_ctx_t *ctx, const u8 *src, u8 *dst,
+			u32 n_bytes, aes_key_size_t ks)
+{
+  int r = AES_KEY_ROUNDS (ks);
+  aes_counter_t ctr = ctx->ctr;
+
+  if (ctx->n_keystream_bytes)
+    {
+      u8 *ks = ctx->keystream_bytes + N_AES_BYTES - ctx->n_keystream_bytes;
+
+      if (ctx->n_keystream_bytes >= n_bytes)
+	{
+	  for (int i = 0; i < n_bytes; i++)
+	    dst[i] = src[i] ^ ks[i];
+	  ctx->n_keystream_bytes -= n_bytes;
+	  return;
+	}
+
+      for (int i = 0; i < ctx->n_keystream_bytes; i++)
+	dst++[0] = src++[0] ^ ks[i];
+
+      n_bytes -= ctx->n_keystream_bytes;
+      ctx->n_keystream_bytes = 0;
+    }
+
+  /* main loop */
+  for (int n = 4 * N_AES_BYTES; n_bytes >= n; n_bytes -= n, dst += n, src += n)
+    ctr = aes_ctr_one_block (ctx, ctr, src, dst, 4, n, r, 0);
+
+  if (n_bytes)
+    {
+      if (n_bytes > 3 * N_AES_BYTES)
+	ctr = aes_ctr_one_block (ctx, ctr, src, dst, 4, n_bytes, r, 1);
+      else if (n_bytes > 2 * N_AES_BYTES)
+	ctr = aes_ctr_one_block (ctx, ctr, src, dst, 3, n_bytes, r, 1);
+      else if (n_bytes > N_AES_BYTES)
+	ctr = aes_ctr_one_block (ctx, ctr, src, dst, 2, n_bytes, r, 1);
+      else
+	ctr = aes_ctr_one_block (ctx, ctr, src, dst, 1, n_bytes, r, 1);
+    }
+  else
+    ctx->n_keystream_bytes = 0;
+
+  ctx->ctr = ctr;
+}
+
+static_always_inline void
+clib_aes_ctr_key_expand (aes_ctr_key_data_t *kd, const u8 *key,
+			 aes_key_size_t ks)
+{
+  u8x16 ek[AES_KEY_ROUNDS (AES_KEY_256) + 1];
+  aes_expaned_key_t *k = (aes_expaned_key_t *) kd->exp_key;
+
+  /* expand AES key */
+  aes_key_expand (ek, key, ks);
+  for (int i = 0; i < AES_KEY_ROUNDS (ks) + 1; i++)
+    k[i].lanes[0] = k[i].lanes[1] = k[i].lanes[2] = k[i].lanes[3] = ek[i];
+}
+
+static_always_inline void
+clib_aes128_ctr (const aes_ctr_key_data_t *kd, const u8 *src, u32 n_bytes,
+		 const u8 *iv, u8 *dst)
+{
+  aes_ctr_ctx_t ctx;
+  clib_aes_ctr_init (&ctx, kd, iv, AES_KEY_128);
+  clib_aes_ctr_transform (&ctx, src, dst, n_bytes, AES_KEY_128);
+}
+
+static_always_inline void
+clib_aes192_ctr (const aes_ctr_key_data_t *kd, const u8 *src, u32 n_bytes,
+		 const u8 *iv, u8 *dst)
+{
+  aes_ctr_ctx_t ctx;
+  clib_aes_ctr_init (&ctx, kd, iv, AES_KEY_192);
+  clib_aes_ctr_transform (&ctx, src, dst, n_bytes, AES_KEY_192);
+}
+
+static_always_inline void
+clib_aes256_ctr (const aes_ctr_key_data_t *kd, const u8 *src, u32 n_bytes,
+		 const u8 *iv, u8 *dst)
+{
+  aes_ctr_ctx_t ctx;
+  clib_aes_ctr_init (&ctx, kd, iv, AES_KEY_256);
+  clib_aes_ctr_transform (&ctx, src, dst, n_bytes, AES_KEY_256);
+}
+
+#endif /* __crypto_aes_ctr_h__ */
diff --git a/src/vppinfra/crypto/aes_gcm.h b/src/vppinfra/crypto/aes_gcm.h
index 3d1b220f7b8..5b628c87745 100644
--- a/src/vppinfra/crypto/aes_gcm.h
+++ b/src/vppinfra/crypto/aes_gcm.h
@@ -13,47 +13,25 @@
 #include <vppinfra/crypto/ghash.h>
 
 #define NUM_HI 36
-#if defined(__VAES__) && defined(__AVX512F__)
-typedef u8x64 aes_data_t;
+#if N_AES_LANES == 4
 typedef u8x64u aes_ghash_t;
-typedef u8x64u aes_mem_t;
-typedef u32x16 aes_gcm_counter_t;
-#define N			       64
-#define aes_gcm_load_partial(p, n)     u8x64_load_partial ((u8 *) (p), n)
-#define aes_gcm_store_partial(v, p, n) u8x64_store_partial (v, (u8 *) (p), n)
 #define aes_gcm_splat(v)	       u8x64_splat (v)
-#define aes_gcm_reflect(r)	       u8x64_reflect_u8x16 (r)
 #define aes_gcm_ghash_reduce(c)	       ghash4_reduce (&(c)->gd)
 #define aes_gcm_ghash_reduce2(c)       ghash4_reduce2 (&(c)->gd)
 #define aes_gcm_ghash_final(c)	       (c)->T = ghash4_final (&(c)->gd)
-#elif defined(__VAES__)
-typedef u8x32 aes_data_t;
+#elif N_AES_LANES == 2
 typedef u8x32u aes_ghash_t;
-typedef u8x32u aes_mem_t;
-typedef u32x8 aes_gcm_counter_t;
-#define N			       32
-#define aes_gcm_load_partial(p, n)     u8x32_load_partial ((u8 *) (p), n)
-#define aes_gcm_store_partial(v, p, n) u8x32_store_partial (v, (u8 *) (p), n)
 #define aes_gcm_splat(v)	       u8x32_splat (v)
-#define aes_gcm_reflect(r)	       u8x32_reflect_u8x16 (r)
 #define aes_gcm_ghash_reduce(c)	       ghash2_reduce (&(c)->gd)
 #define aes_gcm_ghash_reduce2(c)       ghash2_reduce2 (&(c)->gd)
 #define aes_gcm_ghash_final(c)	       (c)->T = ghash2_final (&(c)->gd)
 #else
-typedef u8x16 aes_data_t;
 typedef u8x16 aes_ghash_t;
-typedef u8x16u aes_mem_t;
-typedef u32x4 aes_gcm_counter_t;
-#define N			       16
-#define aes_gcm_load_partial(p, n)     u8x16_load_partial ((u8 *) (p), n)
-#define aes_gcm_store_partial(v, p, n) u8x16_store_partial (v, (u8 *) (p), n)
 #define aes_gcm_splat(v)	       u8x16_splat (v)
-#define aes_gcm_reflect(r)	       u8x16_reflect (r)
 #define aes_gcm_ghash_reduce(c)	       ghash_reduce (&(c)->gd)
 #define aes_gcm_ghash_reduce2(c)       ghash_reduce2 (&(c)->gd)
 #define aes_gcm_ghash_final(c)	       (c)->T = ghash_final (&(c)->gd)
 #endif
-#define N_LANES (N / 16)
 
 typedef enum
 {
@@ -63,21 +41,12 @@ typedef enum
   AES_GCM_OP_GMAC
 } aes_gcm_op_t;
 
-typedef union
-{
-  u8x16 x1;
-  u8x32 x2;
-  u8x64 x4;
-  u8x16 lanes[4];
-} __clib_aligned (64)
-aes_gcm_expaned_key_t;
-
 typedef struct
 {
   /* pre-calculated hash key values */
   const u8x16 Hi[NUM_HI];
   /* extracted AES key */
-  const aes_gcm_expaned_key_t Ke[AES_KEY_ROUNDS (AES_KEY_256) + 1];
+  const aes_expaned_key_t Ke[AES_KEY_ROUNDS (AES_KEY_256) + 1];
 } aes_gcm_key_data_t;
 
 typedef struct
@@ -95,12 +64,12 @@ typedef struct
   const aes_ghash_t *next_Hi;
 
   /* expaded keys */
-  const aes_gcm_expaned_key_t *Ke;
+  const aes_expaned_key_t *Ke;
 
   /* counter */
   u32 counter;
   u8x16 EY0;
-  aes_gcm_counter_t Y;
+  aes_counter_t Y;
 
   /* ghash */
   ghash_ctx_t gd;
@@ -117,39 +86,39 @@ aes_gcm_ghash_mul_first (aes_gcm_ctx_t *ctx, aes_data_t data, u32 n_lanes)
 {
   uword hash_offset = NUM_HI - n_lanes;
   ctx->next_Hi = (aes_ghash_t *) (ctx->Hi + hash_offset);
-#if N_LANES == 4
+#if N_AES_LANES == 4
   u8x64 tag4 = {};
   tag4 = u8x64_insert_u8x16 (tag4, ctx->T, 0);
-  ghash4_mul_first (&ctx->gd, aes_gcm_reflect (data) ^ tag4, *ctx->next_Hi++);
-#elif N_LANES == 2
+  ghash4_mul_first (&ctx->gd, aes_reflect (data) ^ tag4, *ctx->next_Hi++);
+#elif N_AES_LANES == 2
   u8x32 tag2 = {};
   tag2 = u8x32_insert_lo (tag2, ctx->T);
-  ghash2_mul_first (&ctx->gd, aes_gcm_reflect (data) ^ tag2, *ctx->next_Hi++);
+  ghash2_mul_first (&ctx->gd, aes_reflect (data) ^ tag2, *ctx->next_Hi++);
 #else
-  ghash_mul_first (&ctx->gd, aes_gcm_reflect (data) ^ ctx->T, *ctx->next_Hi++);
+  ghash_mul_first (&ctx->gd, aes_reflect (data) ^ ctx->T, *ctx->next_Hi++);
 #endif
 }
 
 static_always_inline void
 aes_gcm_ghash_mul_next (aes_gcm_ctx_t *ctx, aes_data_t data)
 {
-#if N_LANES == 4
-  ghash4_mul_next (&ctx->gd, aes_gcm_reflect (data), *ctx->next_Hi++);
-#elif N_LANES == 2
-  ghash2_mul_next (&ctx->gd, aes_gcm_reflect (data), *ctx->next_Hi++);
+#if N_AES_LANES == 4
+  ghash4_mul_next (&ctx->gd, aes_reflect (data), *ctx->next_Hi++);
+#elif N_AES_LANES == 2
+  ghash2_mul_next (&ctx->gd, aes_reflect (data), *ctx->next_Hi++);
 #else
-  ghash_mul_next (&ctx->gd, aes_gcm_reflect (data), *ctx->next_Hi++);
+  ghash_mul_next (&ctx->gd, aes_reflect (data), *ctx->next_Hi++);
 #endif
 }
 
 static_always_inline void
 aes_gcm_ghash_mul_final_block (aes_gcm_ctx_t *ctx)
 {
-#if N_LANES == 4
+#if N_AES_LANES == 4
   u8x64 h = u8x64_insert_u8x16 (u8x64_zero (), ctx->Hi[NUM_HI - 1], 0);
   u8x64 r4 = u8x64_insert_u8x16 (u8x64_zero (), aes_gcm_final_block (ctx), 0);
   ghash4_mul_next (&ctx->gd, r4, h);
-#elif N_LANES == 2
+#elif N_AES_LANES == 2
   u8x32 h = u8x32_insert_lo (u8x32_zero (), ctx->Hi[NUM_HI - 1]);
   u8x32 r2 = u8x32_insert_lo (u8x32_zero (), aes_gcm_final_block (ctx));
   ghash2_mul_next (&ctx->gd, r2, h);
@@ -164,9 +133,9 @@ aes_gcm_enc_ctr0_round (aes_gcm_ctx_t *ctx, int aes_round)
   if (aes_round == 0)
     ctx->EY0 ^= ctx->Ke[0].x1;
   else if (aes_round == ctx->rounds)
-    ctx->EY0 = aes_enc_last_round (ctx->EY0, ctx->Ke[aes_round].x1);
+    ctx->EY0 = aes_enc_last_round_x1 (ctx->EY0, ctx->Ke[aes_round].x1);
   else
-    ctx->EY0 = aes_enc_round (ctx->EY0, ctx->Ke[aes_round].x1);
+    ctx->EY0 = aes_enc_round_x1 (ctx->EY0, ctx->Ke[aes_round].x1);
 }
 
 static_always_inline void
@@ -176,11 +145,11 @@ aes_gcm_ghash (aes_gcm_ctx_t *ctx, u8 *data, u32 n_left)
   aes_data_t r = {};
   const aes_mem_t *d = (aes_mem_t *) data;
 
-  for (; n_left >= 8 * N; n_left -= 8 * N, d += 8)
+  for (int n = 8 * N_AES_BYTES; n_left >= n; n_left -= n, d += 8)
     {
-      if (ctx->operation == AES_GCM_OP_GMAC && n_left == N * 8)
+      if (ctx->operation == AES_GCM_OP_GMAC && n_left == n)
 	{
-	  aes_gcm_ghash_mul_first (ctx, d[0], 8 * N_LANES + 1);
+	  aes_gcm_ghash_mul_first (ctx, d[0], 8 * N_AES_LANES + 1);
 	  for (i = 1; i < 8; i++)
 	    aes_gcm_ghash_mul_next (ctx, d[i]);
 	  aes_gcm_ghash_mul_final_block (ctx);
@@ -190,7 +159,7 @@ aes_gcm_ghash (aes_gcm_ctx_t *ctx, u8 *data, u32 n_left)
 	  goto done;
 	}
 
-      aes_gcm_ghash_mul_first (ctx, d[0], 8 * N_LANES);
+      aes_gcm_ghash_mul_first (ctx, d[0], 8 * N_AES_LANES);
       for (i = 1; i < 8; i++)
 	aes_gcm_ghash_mul_next (ctx, d[i]);
       aes_gcm_ghash_reduce (ctx);
@@ -205,7 +174,7 @@ aes_gcm_ghash (aes_gcm_ctx_t *ctx, u8 *data, u32 n_left)
       if (ctx->operation == AES_GCM_OP_GMAC)
 	n_lanes++;
 
-      if (n_left < N)
+      if (n_left < N_AES_BYTES)
 	{
 	  clib_memcpy_fast (&r, d, n_left);
 	  aes_gcm_ghash_mul_first (ctx, r, n_lanes);
@@ -213,30 +182,30 @@ aes_gcm_ghash (aes_gcm_ctx_t *ctx, u8 *data, u32 n_left)
       else
 	{
 	  aes_gcm_ghash_mul_first (ctx, d[0], n_lanes);
-	  n_left -= N;
+	  n_left -= N_AES_BYTES;
 	  i = 1;
 
-	  if (n_left >= 4 * N)
+	  if (n_left >= 4 * N_AES_BYTES)
 	    {
 	      aes_gcm_ghash_mul_next (ctx, d[i]);
 	      aes_gcm_ghash_mul_next (ctx, d[i + 1]);
 	      aes_gcm_ghash_mul_next (ctx, d[i + 2]);
 	      aes_gcm_ghash_mul_next (ctx, d[i + 3]);
-	      n_left -= 4 * N;
+	      n_left -= 4 * N_AES_BYTES;
 	      i += 4;
 	    }
-	  if (n_left >= 2 * N)
+	  if (n_left >= 2 * N_AES_BYTES)
 	    {
 	      aes_gcm_ghash_mul_next (ctx, d[i]);
 	      aes_gcm_ghash_mul_next (ctx, d[i + 1]);
-	      n_left -= 2 * N;
+	      n_left -= 2 * N_AES_BYTES;
 	      i += 2;
 	    }
 
-	  if (n_left >= N)
+	  if (n_left >= N_AES_BYTES)
 	    {
 	      aes_gcm_ghash_mul_next (ctx, d[i]);
-	      n_left -= N;
+	      n_left -= N_AES_BYTES;
 	      i += 1;
 	    }
 
@@ -267,7 +236,7 @@ done:
 static_always_inline void
 aes_gcm_enc_first_round (aes_gcm_ctx_t *ctx, aes_data_t *r, uword n_blocks)
 {
-  const aes_gcm_expaned_key_t Ke0 = ctx->Ke[0];
+  const aes_expaned_key_t Ke0 = ctx->Ke[0];
   uword i = 0;
 
   /* As counter is stored in network byte order for performance reasons we
@@ -275,7 +244,7 @@ aes_gcm_enc_first_round (aes_gcm_ctx_t *ctx, aes_data_t *r, uword n_blocks)
      overlow. As we are processing four 128, 256 or 512-blocks in parallel
      except the last round, overflow can happen only when n_blocks == 4 */
 
-#if N_LANES == 4
+#if N_AES_LANES == 4
   const u32x16 ctr_inv_4444 = { 0, 0, 0, 4 << 24, 0, 0, 0, 4 << 24,
 				0, 0, 0, 4 << 24, 0, 0, 0, 4 << 24 };
 
@@ -292,13 +261,13 @@ aes_gcm_enc_first_round (aes_gcm_ctx_t *ctx, aes_data_t *r, uword n_blocks)
 
   if (n_blocks == 4 && PREDICT_FALSE ((u8) ctx->counter == 242))
     {
-      u32x16 Yr = (u32x16) aes_gcm_reflect ((u8x64) ctx->Y);
+      u32x16 Yr = (u32x16) aes_reflect ((u8x64) ctx->Y);
 
       for (; i < n_blocks; i++)
 	{
 	  r[i] = Ke0.x4 ^ (u8x64) ctx->Y; /* Initial AES round */
 	  Yr += ctr_4444;
-	  ctx->Y = (u32x16) aes_gcm_reflect ((u8x64) Yr);
+	  ctx->Y = (u32x16) aes_reflect ((u8x64) Yr);
 	}
     }
   else
@@ -310,7 +279,7 @@ aes_gcm_enc_first_round (aes_gcm_ctx_t *ctx, aes_data_t *r, uword n_blocks)
 	}
     }
   ctx->counter += n_blocks * 4;
-#elif N_LANES == 2
+#elif N_AES_LANES == 2
   const u32x8 ctr_inv_22 = { 0, 0, 0, 2 << 24, 0, 0, 0, 2 << 24 };
   const u32x8 ctr_22 = { 2, 0, 0, 0, 2, 0, 0, 0 };
 
@@ -323,13 +292,13 @@ aes_gcm_enc_first_round (aes_gcm_ctx_t *ctx, aes_data_t *r, uword n_blocks)
 
   if (n_blocks == 4 && PREDICT_FALSE ((u8) ctx->counter == 250))
     {
-      u32x8 Yr = (u32x8) aes_gcm_reflect ((u8x32) ctx->Y);
+      u32x8 Yr = (u32x8) aes_reflect ((u8x32) ctx->Y);
 
       for (; i < n_blocks; i++)
 	{
 	  r[i] = Ke0.x2 ^ (u8x32) ctx->Y; /* Initial AES round */
 	  Yr += ctr_22;
-	  ctx->Y = (u32x8) aes_gcm_reflect ((u8x32) Yr);
+	  ctx->Y = (u32x8) aes_reflect ((u8x32) Yr);
 	}
     }
   else
@@ -370,42 +339,21 @@ aes_gcm_enc_first_round (aes_gcm_ctx_t *ctx, aes_data_t *r, uword n_blocks)
 }
 
 static_always_inline void
-aes_gcm_enc_round (aes_data_t *r, const aes_gcm_expaned_key_t *Ke,
-		   uword n_blocks)
-{
-  for (int i = 0; i < n_blocks; i++)
-#if N_LANES == 4
-    r[i] = aes_enc_round_x4 (r[i], Ke->x4);
-#elif N_LANES == 2
-    r[i] = aes_enc_round_x2 (r[i], Ke->x2);
-#else
-    r[i] = aes_enc_round (r[i], Ke->x1);
-#endif
-}
-
-static_always_inline void
 aes_gcm_enc_last_round (aes_gcm_ctx_t *ctx, aes_data_t *r, aes_data_t *d,
-			const aes_gcm_expaned_key_t *Ke, uword n_blocks)
+			const aes_expaned_key_t *Ke, uword n_blocks)
 {
   /* additional ronuds for AES-192 and AES-256 */
   for (int i = 10; i < ctx->rounds; i++)
-    aes_gcm_enc_round (r, Ke + i, n_blocks);
+    aes_enc_round (r, Ke + i, n_blocks);
 
-  for (int i = 0; i < n_blocks; i++)
-#if N_LANES == 4
-    d[i] ^= aes_enc_last_round_x4 (r[i], Ke[ctx->rounds].x4);
-#elif N_LANES == 2
-    d[i] ^= aes_enc_last_round_x2 (r[i], Ke[ctx->rounds].x2);
-#else
-    d[i] ^= aes_enc_last_round (r[i], Ke[ctx->rounds].x1);
-#endif
+  aes_enc_last_round (r, d, Ke + ctx->rounds, n_blocks);
 }
 
 static_always_inline void
 aes_gcm_calc (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst, u32 n,
 	      u32 n_bytes, int with_ghash)
 {
-  const aes_gcm_expaned_key_t *k = ctx->Ke;
+  const aes_expaned_key_t *k = ctx->Ke;
   const aes_mem_t *sv = (aes_mem_t *) src;
   aes_mem_t *dv = (aes_mem_t *) dst;
   uword ghash_blocks, gc = 1;
@@ -415,23 +363,23 @@ aes_gcm_calc (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst, u32 n,
   if (ctx->operation == AES_GCM_OP_ENCRYPT)
     {
       ghash_blocks = 4;
-      n_lanes = N_LANES * 4;
+      n_lanes = N_AES_LANES * 4;
     }
   else
     {
       ghash_blocks = n;
-      n_lanes = n * N_LANES;
-#if N_LANES != 1
+      n_lanes = n * N_AES_LANES;
+#if N_AES_LANES != 1
       if (ctx->last)
 	n_lanes = (n_bytes + 15) / 16;
 #endif
     }
 
-  n_bytes -= (n - 1) * N;
+  n_bytes -= (n - 1) * N_AES_BYTES;
 
   /* AES rounds 0 and 1 */
   aes_gcm_enc_first_round (ctx, r, n);
-  aes_gcm_enc_round (r, k + 1, n);
+  aes_enc_round (r, k + 1, n);
 
   /* load data - decrypt round */
   if (ctx->operation == AES_GCM_OP_DECRYPT)
@@ -440,7 +388,7 @@ aes_gcm_calc (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst, u32 n,
 	d[i] = sv[i];
 
       if (ctx->last)
-	d[n - 1] = aes_gcm_load_partial ((u8 *) (sv + n - 1), n_bytes);
+	d[n - 1] = aes_load_partial ((u8 *) (sv + n - 1), n_bytes);
     }
 
   /* GHASH multiply block 0 */
@@ -448,24 +396,24 @@ aes_gcm_calc (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst, u32 n,
     aes_gcm_ghash_mul_first (ctx, d[0], n_lanes);
 
   /* AES rounds 2 and 3 */
-  aes_gcm_enc_round (r, k + 2, n);
-  aes_gcm_enc_round (r, k + 3, n);
+  aes_enc_round (r, k + 2, n);
+  aes_enc_round (r, k + 3, n);
 
   /* GHASH multiply block 1 */
   if (with_ghash && gc++ < ghash_blocks)
     aes_gcm_ghash_mul_next (ctx, (d[1]));
 
   /* AES rounds 4 and 5 */
-  aes_gcm_enc_round (r, k + 4, n);
-  aes_gcm_enc_round (r, k + 5, n);
+  aes_enc_round (r, k + 4, n);
+  aes_enc_round (r, k + 5, n);
 
   /* GHASH multiply block 2 */
   if (with_ghash && gc++ < ghash_blocks)
     aes_gcm_ghash_mul_next (ctx, (d[2]));
 
   /* AES rounds 6 and 7 */
-  aes_gcm_enc_round (r, k + 6, n);
-  aes_gcm_enc_round (r, k + 7, n);
+  aes_enc_round (r, k + 6, n);
+  aes_enc_round (r, k + 7, n);
 
   /* GHASH multiply block 3 */
   if (with_ghash && gc++ < ghash_blocks)
@@ -478,12 +426,12 @@ aes_gcm_calc (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst, u32 n,
 	d[i] = sv[i];
 
       if (ctx->last)
-	d[n - 1] = aes_gcm_load_partial (sv + n - 1, n_bytes);
+	d[n - 1] = aes_load_partial (sv + n - 1, n_bytes);
     }
 
   /* AES rounds 8 and 9 */
-  aes_gcm_enc_round (r, k + 8, n);
-  aes_gcm_enc_round (r, k + 9, n);
+  aes_enc_round (r, k + 8, n);
+  aes_enc_round (r, k + 9, n);
 
   /* AES last round(s) */
   aes_gcm_enc_last_round (ctx, r, d, k, n);
@@ -493,7 +441,7 @@ aes_gcm_calc (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst, u32 n,
     dv[i] = d[i];
 
   if (ctx->last)
-    aes_gcm_store_partial (d[n - 1], dv + n - 1, n_bytes);
+    aes_store_partial (d[n - 1], dv + n - 1, n_bytes);
 
   /* GHASH reduce 1st step */
   aes_gcm_ghash_reduce (ctx);
@@ -510,14 +458,14 @@ aes_gcm_calc (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst, u32 n,
 static_always_inline void
 aes_gcm_calc_double (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst)
 {
-  const aes_gcm_expaned_key_t *k = ctx->Ke;
+  const aes_expaned_key_t *k = ctx->Ke;
   const aes_mem_t *sv = (aes_mem_t *) src;
   aes_mem_t *dv = (aes_mem_t *) dst;
   aes_data_t r[4];
 
   /* AES rounds 0 and 1 */
   aes_gcm_enc_first_round (ctx, r, 4);
-  aes_gcm_enc_round (r, k + 1, 4);
+  aes_enc_round (r, k + 1, 4);
 
   /* load 4 blocks of data - decrypt round */
   if (ctx->operation == AES_GCM_OP_DECRYPT)
@@ -525,32 +473,32 @@ aes_gcm_calc_double (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst)
       d[i] = sv[i];
 
   /* GHASH multiply block 0 */
-  aes_gcm_ghash_mul_first (ctx, d[0], N_LANES * 8);
+  aes_gcm_ghash_mul_first (ctx, d[0], N_AES_LANES * 8);
 
   /* AES rounds 2 and 3 */
-  aes_gcm_enc_round (r, k + 2, 4);
-  aes_gcm_enc_round (r, k + 3, 4);
+  aes_enc_round (r, k + 2, 4);
+  aes_enc_round (r, k + 3, 4);
 
   /* GHASH multiply block 1 */
   aes_gcm_ghash_mul_next (ctx, (d[1]));
 
   /* AES rounds 4 and 5 */
-  aes_gcm_enc_round (r, k + 4, 4);
-  aes_gcm_enc_round (r, k + 5, 4);
+  aes_enc_round (r, k + 4, 4);
+  aes_enc_round (r, k + 5, 4);
 
   /* GHASH multiply block 2 */
   aes_gcm_ghash_mul_next (ctx, (d[2]));
 
   /* AES rounds 6 and 7 */
-  aes_gcm_enc_round (r, k + 6, 4);
-  aes_gcm_enc_round (r, k + 7, 4);
+  aes_enc_round (r, k + 6, 4);
+  aes_enc_round (r, k + 7, 4);
 
   /* GHASH multiply block 3 */
   aes_gcm_ghash_mul_next (ctx, (d[3]));
 
   /* AES rounds 8 and 9 */
-  aes_gcm_enc_round (r, k + 8, 4);
-  aes_gcm_enc_round (r, k + 9, 4);
+  aes_enc_round (r, k + 8, 4);
+  aes_enc_round (r, k + 9, 4);
 
   /* load 4 blocks of data - encrypt round */
   if (ctx->operation == AES_GCM_OP_ENCRYPT)
@@ -574,35 +522,35 @@ aes_gcm_calc_double (aes_gcm_ctx_t *ctx, aes_data_t *d, const u8 *src, u8 *dst)
 
   /* AES rounds 0 and 1 */
   aes_gcm_enc_first_round (ctx, r, 4);
-  aes_gcm_enc_round (r, k + 1, 4);
+  aes_enc_round (r, k + 1, 4);
 
   /* GHASH multiply block 5 */
   aes_gcm_ghash_mul_next (ctx, (d[1]));
 
   /* AES rounds 2 and 3 */
-  aes_gcm_enc_round (r, k + 2, 4);
-  aes_gcm_enc_round (r, k + 3, 4);
+  aes_enc_round (r, k + 2, 4);
+  aes_enc_round (r, k + 3, 4);
 
   /* GHASH multiply block 6 */
   aes_gcm_ghash_mul_next (ctx, (d[2]));
 
   /* AES rounds 4 and 5 */
-  aes_gcm_enc_round (r, k + 4, 4);
-  aes_gcm_enc_round (r, k + 5, 4);
+  aes_enc_round (r, k + 4, 4);
+  aes_enc_round (r, k + 5, 4);
 
   /* GHASH multiply block 7 */
   aes_gcm_ghash_mul_next (ctx, (d[3]));
 
   /* AES rounds 6 and 7 */
-  aes_gcm_enc_round (r, k + 6, 4);
-  aes_gcm_enc_round (r, k + 7, 4);
+  aes_enc_round (r, k + 6, 4);
+  aes_enc_round (r, k + 7, 4);
 
   /* GHASH reduce 1st step */
   aes_gcm_ghash_reduce (ctx);
 
   /* AES rounds 8 and 9 */
-  aes_gcm_enc_round (r, k + 8, 4);
-  aes_gcm_enc_round (r, k + 9, 4);
+  aes_enc_round (r, k + 8, 4);
+  aes_enc_round (r, k + 9, 4);
 
   /* GHASH reduce 2nd step */
   aes_gcm_ghash_reduce2 (ctx);
@@ -644,14 +592,14 @@ static_always_inline void
 aes_gcm_calc_last (aes_gcm_ctx_t *ctx, aes_data_t *d, int n_blocks,
 		   u32 n_bytes)
 {
-  int n_lanes = (N_LANES == 1 ? n_blocks : (n_bytes + 15) / 16) + 1;
-  n_bytes -= (n_blocks - 1) * N;
+  int n_lanes = (N_AES_LANES == 1 ? n_blocks : (n_bytes + 15) / 16) + 1;
+  n_bytes -= (n_blocks - 1) * N_AES_BYTES;
   int i;
 
   aes_gcm_enc_ctr0_round (ctx, 0);
   aes_gcm_enc_ctr0_round (ctx, 1);
 
-  if (n_bytes != N)
+  if (n_bytes != N_AES_BYTES)
     aes_gcm_mask_bytes (d + n_blocks - 1, n_bytes);
 
   aes_gcm_ghash_mul_first (ctx, d[0], n_lanes);
@@ -703,20 +651,20 @@ aes_gcm_enc (aes_gcm_ctx_t *ctx, const u8 *src, u8 *dst, u32 n_left)
       return;
     }
 
-  if (n_left < 4 * N)
+  if (n_left < 4 * N_AES_BYTES)
     {
       ctx->last = 1;
-      if (n_left > 3 * N)
+      if (n_left > 3 * N_AES_BYTES)
 	{
 	  aes_gcm_calc (ctx, d, src, dst, 4, n_left, /* with_ghash */ 0);
 	  aes_gcm_calc_last (ctx, d, 4, n_left);
 	}
-      else if (n_left > 2 * N)
+      else if (n_left > 2 * N_AES_BYTES)
 	{
 	  aes_gcm_calc (ctx, d, src, dst, 3, n_left, /* with_ghash */ 0);
 	  aes_gcm_calc_last (ctx, d, 3, n_left);
 	}
-      else if (n_left > N)
+      else if (n_left > N_AES_BYTES)
 	{
 	  aes_gcm_calc (ctx, d, src, dst, 2, n_left, /* with_ghash */ 0);
 	  aes_gcm_calc_last (ctx, d, 2, n_left);
@@ -729,45 +677,45 @@ aes_gcm_enc (aes_gcm_ctx_t *ctx, const u8 *src, u8 *dst, u32 n_left)
       return;
     }
 
-  aes_gcm_calc (ctx, d, src, dst, 4, 4 * N, /* with_ghash */ 0);
+  aes_gcm_calc (ctx, d, src, dst, 4, 4 * N_AES_BYTES, /* with_ghash */ 0);
 
   /* next */
-  n_left -= 4 * N;
-  dst += 4 * N;
-  src += 4 * N;
+  n_left -= 4 * N_AES_BYTES;
+  dst += 4 * N_AES_BYTES;
+  src += 4 * N_AES_BYTES;
 
-  for (; n_left >= 8 * N; n_left -= 8 * N, src += 8 * N, dst += 8 * N)
+  for (int n = 8 * N_AES_BYTES; n_left >= n; n_left -= n, src += n, dst += n)
     aes_gcm_calc_double (ctx, d, src, dst);
 
-  if (n_left >= 4 * N)
+  if (n_left >= 4 * N_AES_BYTES)
     {
-      aes_gcm_calc (ctx, d, src, dst, 4, 4 * N, /* with_ghash */ 1);
+      aes_gcm_calc (ctx, d, src, dst, 4, 4 * N_AES_BYTES, /* with_ghash */ 1);
 
       /* next */
-      n_left -= 4 * N;
-      dst += 4 * N;
-      src += 4 * N;
+      n_left -= 4 * N_AES_BYTES;
+      dst += 4 * N_AES_BYTES;
+      src += 4 * N_AES_BYTES;
     }
 
   if (n_left == 0)
     {
-      aes_gcm_calc_last (ctx, d, 4, 4 * N);
+      aes_gcm_calc_last (ctx, d, 4, 4 * N_AES_BYTES);
       return;
     }
 
   ctx->last = 1;
 
-  if (n_left > 3 * N)
+  if (n_left > 3 * N_AES_BYTES)
     {
       aes_gcm_calc (ctx, d, src, dst, 4, n_left, /* with_ghash */ 1);
       aes_gcm_calc_last (ctx, d, 4, n_left);
     }
-  else if (n_left > 2 * N)
+  else if (n_left > 2 * N_AES_BYTES)
     {
       aes_gcm_calc (ctx, d, src, dst, 3, n_left, /* with_ghash */ 1);
       aes_gcm_calc_last (ctx, d, 3, n_left);
     }
-  else if (n_left > N)
+  else if (n_left > N_AES_BYTES)
     {
       aes_gcm_calc (ctx, d, src, dst, 2, n_left, /* with_ghash */ 1);
       aes_gcm_calc_last (ctx, d, 2, n_left);
@@ -786,28 +734,28 @@ aes_gcm_dec (aes_gcm_ctx_t *ctx, const u8 *src, u8 *dst, uword n_left)
   ghash_ctx_t gd;
 
   /* main encryption loop */
-  for (; n_left >= 8 * N; n_left -= 8 * N, dst += 8 * N, src += 8 * N)
+  for (int n = 8 * N_AES_BYTES; n_left >= n; n_left -= n, dst += n, src += n)
     aes_gcm_calc_double (ctx, d, src, dst);
 
-  if (n_left >= 4 * N)
+  if (n_left >= 4 * N_AES_BYTES)
     {
-      aes_gcm_calc (ctx, d, src, dst, 4, 4 * N, /* with_ghash */ 1);
+      aes_gcm_calc (ctx, d, src, dst, 4, 4 * N_AES_BYTES, /* with_ghash */ 1);
 
       /* next */
-      n_left -= 4 * N;
-      dst += N * 4;
-      src += N * 4;
+      n_left -= 4 * N_AES_BYTES;
+      dst += N_AES_BYTES * 4;
+      src += N_AES_BYTES * 4;
     }
 
   if (n_left)
     {
       ctx->last = 1;
 
-      if (n_left > 3 * N)
+      if (n_left > 3 * N_AES_BYTES)
 	aes_gcm_calc (ctx, d, src, dst, 4, n_left, /* with_ghash */ 1);
-      else if (n_left > 2 * N)
+      else if (n_left > 2 * N_AES_BYTES)
 	aes_gcm_calc (ctx, d, src, dst, 3, n_left, /* with_ghash */ 1);
-      else if (n_left > N)
+      else if (n_left > N_AES_BYTES)
 	aes_gcm_calc (ctx, d, src, dst, 2, n_left, /* with_ghash */ 1);
       else
 	aes_gcm_calc (ctx, d, src, dst, 1, n_left, /* with_ghash */ 1);
@@ -867,11 +815,11 @@ aes_gcm (const u8 *src, u8 *dst, const u8 *aad, u8 *ivp, u8 *tag,
   Y0[3] = 1 << 24;
   ctx->EY0 = (u8x16) Y0;
 
-#if N_LANES == 4
+#if N_AES_LANES == 4
   ctx->Y = u32x16_splat_u32x4 (Y0) + (u32x16){
     0, 0, 0, 1 << 24, 0, 0, 0, 2 << 24, 0, 0, 0, 3 << 24, 0, 0, 0, 4 << 24,
   };
-#elif N_LANES == 2
+#elif N_AES_LANES == 2
   ctx->Y =
     u32x8_splat_u32x4 (Y0) + (u32x8){ 0, 0, 0, 1 << 24, 0, 0, 0, 2 << 24 };
 #else
@@ -926,7 +874,7 @@ clib_aes_gcm_key_expand (aes_gcm_key_data_t *kd, const u8 *key,
 {
   u8x16 H;
   u8x16 ek[AES_KEY_ROUNDS (AES_KEY_256) + 1];
-  aes_gcm_expaned_key_t *Ke = (aes_gcm_expaned_key_t *) kd->Ke;
+  aes_expaned_key_t *Ke = (aes_expaned_key_t *) kd->Ke;
 
   /* expand AES key */
   aes_key_expand (ek, key, ks);
diff --git a/src/vppinfra/test/aes_ctr.c b/src/vppinfra/test/aes_ctr.c
new file mode 100644
index 00000000000..1bf08b208d5
--- /dev/null
+++ b/src/vppinfra/test/aes_ctr.c
@@ -0,0 +1,481 @@
+/* SPDX-License-Identifier: Apache-2.0
+ * Copyright(c) 2024 Cisco Systems, Inc.
+ */
+
+#if defined(__AES__)
+#include <vppinfra/format.h>
+#include <vppinfra/test/test.h>
+#include <vppinfra/crypto/aes_ctr.h>
+
+static const struct
+{
+  char *name;
+  const u8 *pt, *key, *ct, *iv;
+  u32 data_len;
+} test_cases128[] = {
+  /* test cases */
+  { .name = "RFC3686 Test Vector #1",
+    .key = (const u8[16]){ 0xae, 0x68, 0x52, 0xf8, 0x12, 0x10, 0x67, 0xcc,
+			   0x4b, 0xf7, 0xa5, 0x76, 0x55, 0x77, 0xf3, 0x9e },
+    .iv = (const u8[16]){ 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00,
+			  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01 },
+
+    .pt = (const u8 *) "Single block msg",
+    .ct = (const u8[16]){ 0xe4, 0x09, 0x5d, 0x4f, 0xb7, 0xa7, 0xb3, 0x79, 0x2d,
+			  0x61, 0x75, 0xa3, 0x26, 0x13, 0x11, 0xb8 },
+    .data_len = 16 },
+  { .name = "RFC3686 Test Vector #2",
+    .key = (const u8[16]){ 0x7e, 0x24, 0x06, 0x78, 0x17, 0xfa, 0xe0, 0xd7,
+			   0x43, 0xd6, 0xce, 0x1f, 0x32, 0x53, 0x91, 0x63 },
+    .iv = (const u8[16]){ 0x00, 0x6c, 0xb6, 0xdb, 0xc0, 0x54, 0x3b, 0x59, 0xda,
+			  0x48, 0xd9, 0x0b, 0x00, 0x00, 0x00, 0x01 },
+    .pt = (const u8[32]){ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+			  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+			  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+			  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
+    .ct = (const u8[32]){ 0x51, 0x04, 0xa1, 0x06, 0x16, 0x8a, 0x72, 0xd9,
+			  0x79, 0x0d, 0x41, 0xee, 0x8e, 0xda, 0xd3, 0x88,
+			  0xeb, 0x2e, 0x1e, 0xfc, 0x46, 0xda, 0x57, 0xc8,
+			  0xfc, 0xe6, 0x30, 0xdf, 0x91, 0x41, 0xbe, 0x28 },
+    .data_len = 32 },
+  { .name = "RFC3686 Test Vector #3",
+    .key = (const u8[16]){ 0x76, 0x91, 0xbe, 0x03, 0x5e, 0x50, 0x20, 0xa8,
+			   0xac, 0x6e, 0x61, 0x85, 0x29, 0xf9, 0xa0, 0xdc },
+    .iv = (const u8[16]){ 0x00, 0xe0, 0x01, 0x7b, 0x27, 0x77, 0x7f, 0x3f, 0x4a,
+			  0x17, 0x86, 0xf0, 0x00, 0x00, 0x00, 0x01 },
+    .pt =
+      (const u8[36]){ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+		      0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11,
+		      0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a,
+		      0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23 },
+    .ct =
+      (const u8[36]){ 0xc1, 0xcf, 0x48, 0xa8, 0x9f, 0x2f, 0xfd, 0xd9, 0xcf,
+		      0x46, 0x52, 0xe9, 0xef, 0xdb, 0x72, 0xd7, 0x45, 0x40,
+		      0xa4, 0x2b, 0xde, 0x6d, 0x78, 0x36, 0xd5, 0x9a, 0x5c,
+		      0xea, 0xae, 0xf3, 0x10, 0x53, 0x25, 0xb2, 0x07, 0x2f },
+    .data_len = 36 },
+}, test_cases192[] = {
+  { .name = "RFC3686 Test Vector #4",
+    .key = (const u8[24]){ 0x16, 0xaf, 0x5b, 0x14, 0x5f, 0xc9, 0xf5, 0x79,
+			   0xc1, 0x75, 0xf9, 0x3e, 0x3b, 0xfb, 0x0e, 0xed,
+			   0x86, 0x3d, 0x06, 0xcc, 0xfd, 0xb7, 0x85, 0x15 },
+    .iv = (const u8[16]){ 0x00, 0x00, 0x00, 0x48, 0x36, 0x73, 0x3c, 0x14, 0x7d,
+			  0x6d, 0x93, 0xcb, 0x00, 0x00, 0x00, 0x01 },
+    .pt = (const u8[16]){ 0x53, 0x69, 0x6e, 0x67, 0x6c, 0x65, 0x20, 0x62, 0x6c,
+			  0x6f, 0x63, 0x6b, 0x20, 0x6d, 0x73, 0x67 },
+    .ct = (const u8[16]){ 0x4b, 0x55, 0x38, 0x4f, 0xe2, 0x59, 0xc9, 0xc8, 0x4e,
+			  0x79, 0x35, 0xa0, 0x03, 0xcb, 0xe9, 0x28 },
+    .data_len = 16 },
+  { .name = "RFC3686 Test Vector #5",
+    .key = (const u8[24]){ 0x7c, 0x5c, 0xb2, 0x40, 0x1b, 0x3d, 0xc3, 0x3c,
+			   0x19, 0xe7, 0x34, 0x08, 0x19, 0xe0, 0xf6, 0x9c,
+			   0x67, 0x8c, 0x3d, 0xb8, 0xe6, 0xf6, 0xa9, 0x1a },
+    .iv = (const u8[16]){ 0x00, 0x96, 0xb0, 0x3b, 0x02, 0x0c, 0x6e, 0xad, 0xc2,
+			  0xcb, 0x50, 0x0d, 0x00, 0x00, 0x00, 0x01 },
+    .pt = (const u8[32]){ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+			  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+			  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+			  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
+    .ct = (const u8[32]){ 0x45, 0x32, 0x43, 0xfc, 0x60, 0x9b, 0x23, 0x32,
+			  0x7e, 0xdf, 0xaa, 0xfa, 0x71, 0x31, 0xcd, 0x9f,
+			  0x84, 0x90, 0x70, 0x1c, 0x5a, 0xd4, 0xa7, 0x9c,
+			  0xfc, 0x1f, 0xe0, 0xff, 0x42, 0xf4, 0xfb, 0x00 },
+    .data_len = 32 },
+  { .name = "RFC3686 Test Vector #6",
+    .key = (const u8[24]){ 0x02, 0xBF, 0x39, 0x1E, 0xE8, 0xEC, 0xB1, 0x59,
+			   0xB9, 0x59, 0x61, 0x7B, 0x09, 0x65, 0x27, 0x9B,
+			   0xF5, 0x9B, 0x60, 0xA7, 0x86, 0xD3, 0xE0, 0xFE },
+    .iv = (const u8[16]){ 0x00, 0x07, 0xBD, 0xFD, 0x5C, 0xBD, 0x60, 0x27, 0x8D,
+			  0xCC, 0x09, 0x12, 0x00, 0x00, 0x00, 0x01 },
+    .pt =
+      (const u8[36]){ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+		      0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F, 0x10, 0x11,
+		      0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1A,
+		      0x1B, 0x1C, 0x1D, 0x1E, 0x1F, 0x20, 0x21, 0x22, 0x23 },
+    .ct =
+      (const u8[36]){ 0x96, 0x89, 0x3F, 0xC5, 0x5E, 0x5C, 0x72, 0x2F, 0x54,
+		      0x0B, 0x7D, 0xD1, 0xDD, 0xF7, 0xE7, 0x58, 0xD2, 0x88,
+		      0xBC, 0x95, 0xC6, 0x91, 0x65, 0x88, 0x45, 0x36, 0xC8,
+		      0x11, 0x66, 0x2F, 0x21, 0x88, 0xAB, 0xEE, 0x09, 0x35 },
+    .data_len = 36 },
+
+}, test_cases256[] = {
+  { .name = "RFC3686 Test Vector #7",
+    .key = (const u8[32]){ 0x77, 0x6b, 0xef, 0xf2, 0x85, 0x1d, 0xb0, 0x6f,
+			   0x4c, 0x8a, 0x05, 0x42, 0xc8, 0x69, 0x6f, 0x6c,
+			   0x6a, 0x81, 0xaf, 0x1e, 0xec, 0x96, 0xb4, 0xd3,
+			   0x7f, 0xc1, 0xd6, 0x89, 0xe6, 0xc1, 0xc1, 0x04 },
+    .iv = (const u8[16]){ 0x00, 0x00, 0x00, 0x60, 0xdb, 0x56, 0x72, 0xc9, 0x7a,
+			  0xa8, 0xf0, 0xb2, 0x00, 0x00, 0x00, 0x01 },
+    .pt = (const u8 *) "Single block msg",
+    .ct = (const u8[16]){ 0x14, 0x5a, 0xd0, 0x1d, 0xbf, 0x82, 0x4e, 0xc7, 0x56,
+			  0x08, 0x63, 0xdc, 0x71, 0xe3, 0xe0, 0xc0 },
+    .data_len = 16 },
+  { .name = "RFC3686 Test Vector #8",
+    .key = (const u8[32]){ 0xf6, 0xd6, 0x6d, 0x6b, 0xd5, 0x2d, 0x59, 0xbb,
+			   0x07, 0x96, 0x36, 0x58, 0x79, 0xef, 0xf8, 0x86,
+			   0xc6, 0x6d, 0xd5, 0x1a, 0x5b, 0x6a, 0x99, 0x74,
+			   0x4b, 0x50, 0x59, 0x0c, 0x87, 0xa2, 0x38, 0x84 },
+    .iv = (const u8[16]){ 0x00, 0xfa, 0xac, 0x24, 0xc1, 0x58, 0x5e, 0xf1, 0x5a,
+			  0x43, 0xd8, 0x75, 0x00, 0x00, 0x00, 0x01 },
+    .pt = (const u8[32]){ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07,
+			  0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f,
+			  0x10, 0x11, 0x12, 0x13, 0x14, 0x15, 0x16, 0x17,
+			  0x18, 0x19, 0x1a, 0x1b, 0x1c, 0x1d, 0x1e, 0x1f },
+    .ct = (const u8[32]){ 0xf0, 0x5e, 0x23, 0x1b, 0x38, 0x94, 0x61, 0x2c,
+			  0x49, 0xee, 0x00, 0x0b, 0x80, 0x4e, 0xb2, 0xa9,
+			  0xb8, 0x30, 0x6b, 0x50, 0x8f, 0x83, 0x9d, 0x6a,
+			  0x55, 0x30, 0x83, 0x1d, 0x93, 0x44, 0xaf, 0x1c },
+    .data_len = 32 },
+  { .name = "RFC3686 Test Vector #9",
+    .key = (const u8[32]){ 0xff, 0x7a, 0x61, 0x7c, 0xe6, 0x91, 0x48, 0xe4,
+			   0xf1, 0x72, 0x6e, 0x2f, 0x43, 0x58, 0x1d, 0xe2,
+			   0xaa, 0x62, 0xd9, 0xf8, 0x05, 0x53, 0x2e, 0xdf,
+			   0xf1, 0xee, 0xd6, 0x87, 0xfb, 0x54, 0x15, 0x3d },
+    .iv = (const u8[16]){ 0x00, 0x1c, 0xc5, 0xb7, 0x51, 0xa5, 0x1d, 0x70, 0xa1,
+			  0xc1, 0x11, 0x48, 0x00, 0x00, 0x00, 0x01 },
+    .pt =
+      (const u8[36]){ 0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
+		      0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10, 0x11,
+		      0x12, 0x13, 0x14, 0x15, 0x16, 0x17, 0x18, 0x19, 0x1a,
+		      0x1b, 0x1c, 0x1d, 0x1e, 0x1f, 0x20, 0x21, 0x22, 0x23 },
+    .ct =
+      (const u8[36]){ 0xeb, 0x6c, 0x52, 0x82, 0x1d, 0x0b, 0xbb, 0xf7, 0xce,
+		      0x75, 0x94, 0x46, 0x2a, 0xca, 0x4f, 0xaa, 0xb4, 0x07,
+		      0xdf, 0x86, 0x65, 0x69, 0xfd, 0x07, 0xf4, 0x8c, 0xc0,
+		      0xb5, 0x83, 0xd6, 0x07, 0x1f, 0x1e, 0xc0, 0xe6, 0xb8 },
+    .data_len = 36 }
+};
+
+#define MAX_TEST_DATA_LEN 256
+
+#define INC_TEST_BYTES (256 * 16 + 1)
+
+static u8 inc_key128[] = {
+  0x2b, 0x7e, 0x15, 0x16, 0x28, 0xae, 0xd2, 0xa6,
+  0xab, 0xf7, 0x15, 0x88, 0x09, 0xcf, 0x4f, 0x3c,
+};
+
+static u8 inc_iv[] = {
+  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
+  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff,
+};
+
+static u64 inc_ct128[] = {
+  0xb77a659c70dd8dec, 0xebaf93e67e1cdbfa, 0x744766732f6e3a26,
+  0xb16d4de0cc6db900, 0x6811ac5c5be10d4a, 0x6b42973b30e29d96,
+  0xf1aec4c4ac0badd8, 0xc1955129e00b33ec, 0x49d7cf50bb054cf0,
+  0x4deb06dcdc7a21b8, 0xa257b4190916c808, 0x44b7d421c38b934b,
+  0x9e4dbb2d1aceb85b, 0x2d1c952f53c6000d, 0x7e25b633f3bceb0d,
+  0xcee9f88cd3c2236d, 0x10ce6bc4a53b1d37, 0xb4783ea69ebc261d,
+  0x7f732c19e5fdd3ea, 0xb253d0ebd5522c84, 0x7925888c44ef010d,
+  0xba213ea62e7ec7f0, 0x239e0466520393fd, 0x8cde31681d451842,
+  0x20b8270d3c5c1bc5, 0x3e56c37a1d573ebe, 0xc4fdb0bb491cf04e,
+  0x29c9a4f92d7b12da, 0x50c8a51f05b6f704, 0x3cf0f4071c2098fa,
+  0xb0842470bd8c6fdd, 0x86dd40fdc9640190, 0xe4a6184230ee4f6c,
+  0x0e2a69261819535e, 0xbdb62571c80aaa39, 0x24a0dc5eafd33f3a,
+  0x830599f37869c6ac, 0xf7049ae1b8e5c0dd, 0x7c9dd8d4405d2050,
+  0x0e91382b1dace623, 0xf2b62e26f4133673, 0xa9216257693afdab,
+  0x2a26df863fb6e980, 0x85e600421c395c83, 0xd5a521016a175cb3,
+  0x5ef31ae51f7f2f7b, 0xc6ff491d0d6f74d4, 0x16b0e60ac13156d3,
+  0xd49e0025d5ec1e4b, 0x987c4eff196cd64e, 0xa163915e80892b07,
+  0x69ab0084052d574a, 0x8017caa649d22bdb, 0xf5eb130f0df2c49a,
+  0xe2ced8f88537e9ea, 0xdaaff5e845cff681, 0xbd22ac46dd219c7a,
+  0x1b963af4641e7cf7, 0xe70e7d5b76f88573, 0x39703f5e2db84937,
+  0x8a1514af42bf3c96, 0x7f51d78b7d3971a6, 0x437a651ef9f08c08,
+  0x69fd3712ccdfd843, 0xd8204939e67dad48, 0x71035fc942194251,
+  0x703d964c7525bb2a, 0xe2166e50e1892d94, 0xbe8034b11f6a5a9f,
+  0x954e4d74c3a9e105, 0x19e077bf00e5186a, 0x7aee46c4b5d4cbf1,
+  0xfd7dedd15a3e7d35, 0x4ba1c4b76cb93f57, 0xb2e94cffbb82f098,
+  0x078b04fcebc1fafc, 0x923edcc8600018b2, 0xc018169aba42ff11,
+  0x0e4f91e46db01bf8, 0x7b5d2b322371e9fa, 0x8e94284632dd300b,
+  0x80a3d93ce61c2f13, 0x445d2fb83ecfef73, 0xe1279d639bcd26c9,
+  0xbd1865ba653ce114, 0x0316cfe3227bfb2a, 0xddc80c63d53878db,
+  0xc91a2f5fedf4a51a, 0xce408a5275b0271f, 0x59a0abc34619018e,
+  0xa215c590ad1afb21, 0xe3b096d42fc03598, 0x7cada064ab4f4997,
+  0x699be0e57d76e47f, 0x235151411eee9cbd, 0xbbc688f0eaf896cd,
+  0x4e78715341f9299d, 0x9f85d76bf99ef2a4, 0x15110ceff4a6040b,
+  0x9feed36ff4566060, 0x4833ea7d66a0c572, 0x94c7edbdf2169d59,
+  0xb413d116c6e771f1, 0x9a4b6e78167f4c66, 0x42d3f993c8aaee27,
+  0xd16783a8c4e57558, 0xb1d7a074dd67339e, 0x97a164444f97adc2,
+  0xc15a08d61628e5f3, 0x8767e41e04eb96a2, 0xbb28953ed0eae183,
+  0xc0bab4e80ed8cc6e, 0x1ac34b5a5c4010f8, 0x0bc3b7d9db1775b7,
+  0x565dead595b98969, 0x0fc03a3cfb656014, 0xdb9098b924a92926,
+  0xe2786bc431c1f39a, 0xf8a0bf4fffb78d10, 0xd76161fe1ae71851,
+  0xced33ea693cedbb4, 0xef13034da5529a1b, 0xd71081cadbbff0ac,
+  0x1873eb643e857392, 0xf6f7c30284ffecb0, 0x93ded259d35eb6fe,
+  0xf872980774f6e5ef, 0xd457c8ed22d5bc3f, 0x75d907e2a6bcced2,
+  0xcfd3dceb8d7a79ba, 0xaeed2ff2fc0872bb, 0xb5fc72005d2eb168,
+  0x850e0e0757274665, 0xab7e5da576c706ec, 0xf1df1ba9a972a4ca,
+  0xe81d430b4f54adf9, 0x788f3d8655ba79bb, 0xf5990db3557bbf8c,
+  0x1cacafc47729252c, 0x7581b4d6f3b83d9b, 0x94185dcdb0b0c4cd,
+  0x3596e687f4b9f4ed, 0xb9462442134b804d, 0xdab188808726fec6,
+  0xfe10831e8824d4c5, 0x000c641ed4c93be7, 0x2525ee781608b1ea,
+  0x2b32469d51104097, 0x73a09c6ea117aea9, 0x8506dcdec8ade0be,
+  0xf9f9fa553cac7285, 0x34b24f100086b974, 0xd42fa88547ade8e7,
+  0xfd0bb8ce9a5f8e14, 0x15df9966c6a3e433, 0xf6696aafaae89cd6,
+  0x3d521a9d1a0087e1, 0xe18ca6b8e94701f0, 0x8a4660e26a77965e,
+  0xc74fcdf41bf4aa20, 0x292a356d0b670157, 0x36ff3344a9eee4ea,
+  0xd76b051d6251a14b, 0xa9e09f1bacd1e30f, 0xae47cb95f95a8831,
+  0x58b85ac7c98537ec, 0x9e30f1be05719bd2, 0x94772e6b56fc1380,
+  0xbe94026a4a89b783, 0x7a7ffb61daa5ac60, 0x2f7beafcc5e9ac8a,
+  0xfa33f37edc57e94c, 0x230c3582fb412093, 0xdeec806ecc4fa3c4,
+  0xc7ff8876a31edd76, 0x6d0500f4ccd1bb20, 0xf1d0bef759b81b6c,
+  0x138b1d39533379b7, 0xece52f84d9f20455, 0x3ed05e391352b9dd,
+  0x95600f558d4dea51, 0x1d6b997966e35392, 0x0eeae16905b94e37,
+  0x7db2acc242a56ab0, 0xaf347e5598687f51, 0xbf25013db6bddc18,
+  0x6d4f106c35f9ee28, 0xc8e90bbe4283ab8c, 0x188cf978f1477dee,
+  0x66376bfa3a6d8131, 0xe0ebd6632eb89b24, 0xb9e49d81e9d37f69,
+  0xa5cfa3812d530e04, 0x717353523542a27f, 0x0d6669c916ab4d34,
+  0x79e741ad592a7bb1, 0x63a7f35584bd3ea5, 0xc0494db2930cbc32,
+  0x442bd29d7edd0e49, 0x52ec0bce733f61a0, 0x8bd199bf55bc2b4b,
+  0x727ede5583bb859c, 0x9d07eda6e8220df1, 0xebdd7467d7259f15,
+  0x8f6035a5dc5f53b1, 0x063a0935630b5f6f, 0xc6e983ec1f08ebe6,
+  0xeedc82de2b28e651, 0xe28760013e13ae23, 0x37c078d66ad376a3,
+  0xd54a72e88e80926b, 0x5822405e1d688eec, 0xa001e0b0d4a7447f,
+  0xfd41f41419d8fd4d, 0x1391d37127a75095, 0x4795d7fb7ad67f17,
+  0xa47c05c9b8400a0c, 0x28519cd5e98bba0c, 0x84a72dce8a27d050,
+  0xcbee7b3c83d68c5f, 0xab2227b8f5203d3d, 0x3335a393d47ef9ec,
+  0xd00b21a2a5dde597, 0xb13d50489ca79216, 0xde1cc721425dda94,
+  0x1ddc9863b5b0b8e8, 0xb125481a01dfe1b5, 0x5b331c746c4148db,
+  0x8d6729fe30d56f1d, 0xdc413723540aca6f, 0xf08fe55711f8f09b,
+  0x98bcde7c09126688, 0xa38c02a0c19d08b0, 0xde8df0683372e31e,
+  0x08b4727054d766a0, 0xc13b77c325ae45ed, 0x6e7fe05de6b28d5a,
+  0x1794a4f149586b9a, 0x23f5881c699f81b8, 0x355c9d899c0dcfe3,
+  0x4319acb92ca33a29, 0x4f3211554c2ecf79, 0x64741347e08aaa2f,
+  0x32f89bf1084e0723, 0xb0d5d830b9ae58a6, 0x235170babbd5686f,
+  0xaa711d0aff2e9830, 0x4f73229995f82ca2, 0x46565f056bb352ea,
+  0x55283776fd729f29, 0xb027c5b67be58718, 0xfa58d8c215d52ef8,
+  0xfa1a78f7c7db4b2f, 0x7b2badd9a5a7e810, 0x6c362d97ece0f08a,
+  0xff8ad11e7ce377b1, 0xdf5a423e843cbfa0, 0xfa9e70edc9c12d2b,
+  0xad745d9146b0b3d9, 0xfc2a590f1ce32b8c, 0x599b34c583449c39,
+  0xbcab9517d2bd4eae, 0xa5a7f54890e38bc7, 0xb9700fcb336a049a,
+  0xfcfcc2d65956af5f, 0x3887b5f3e5d238d6, 0x0b9bc00a60dd37c6,
+  0x09f8d5b6a128fe23, 0x4b33ac26a2a59b5c, 0xfc6e3f30b4b4e108,
+  0x1e53d6aa6266bee7, 0x9adf6b4cb3369643, 0xda38dfd6df234f48,
+  0x845e61ddc98d3d16, 0x4a0b90d7d115d701, 0x64e1c9619aa777c3,
+  0x9dd4b1df006c81f9, 0x71b2b88aea6c679e, 0xb39da7819be759ff,
+  0xfdad221790b269bb, 0x741f7955b56d786c, 0x5d724fcce9250a73,
+  0x3812aa144730905b, 0xb74986be047e24c4, 0xeebb8aa5ebdcc8a0,
+  0x26a0ea4272d5a371, 0x2ff3733c39e92f82, 0x17880beb7b808b30,
+  0xe298cf8aa284e39c, 0xd481ff1948d0eef0, 0xed53786d517a1f10,
+  0x853ccfe7f1cba481, 0x9ba1707467deb6dc, 0xf1aae1c3190806b3,
+  0xb017539bb50b55c4, 0x8809bcc37ac46808, 0x0ae0a3e6e9a6bba5,
+  0xf7a5276c2a6df772, 0xaf095d1ceb24d931, 0xaa0f62c5eb44d3a6,
+  0x5e9915d18cd09844, 0xcfff6a2edf6cd35f, 0x893ebc1038af747e,
+  0xe4360da910f3853a, 0x2097129be26812d5, 0x09d1e31bd3fef181,
+  0x37a585c49cff87c5, 0xd94d2b3b1cd97311, 0xa3a2d50de285388a,
+  0xf627d8b7298602a0, 0x567f848218395a28, 0x9b4b416995765491,
+  0x24388b443fd8730a, 0x5b3a3cc87e225bdb, 0x53a9881d098d520b,
+  0xadbc31258140299f, 0x37345aad0c678a3f, 0xc0e24ea3958ef6d8,
+  0x18ceff669a144d20, 0x3ce920ab86ab70c7, 0x430c240b5307c1cb,
+  0x7240a314d5f7fa9c, 0x4dfaf972d1856f15, 0x76ca74db2ad10515,
+  0x607ec82965c620f7, 0xc75f531d7eae4145, 0xe91c86c49c8d84a2,
+  0x8becf71fe1e371a7, 0x055bb0206808c289, 0x36dbcec66eabc566,
+  0x476f4f1b52c4c856, 0x78bdf9114304e28f, 0x206e8342087ca6e2,
+  0xda66f574514e8795, 0x903bcf41830a763f, 0x3a8c03f8bfe8c1ae,
+  0xc386671f05740107, 0xda3abc3b566c70ab, 0xe1072ad4ebd4a028,
+  0xfe9a6d4c0e8a80ce, 0xeb99eb25a084c442, 0xd34f23f8f279e9f3,
+  0xccb189048479b94d, 0xfc6f6d863f74a049, 0xa437f340bfdfed0e,
+  0xc84ef9a7139af764, 0xbeb88737819b7d55, 0x5f06fb8f06d6372b,
+  0x7ec01ec2f978b4a2, 0x1ad4f2fb9963b46f, 0xae4cdeee5c419652,
+  0x51ee340ba106d1dc, 0x93544a6e274cf180, 0x0de0b1abf6e9773a,
+  0xb55514c7be768e6a, 0x70a3ee12298c0688, 0x58943a332454b1ee,
+  0xe9de88a863b83b29, 0xb99dbf02fc35d6c9, 0x285a09f5583ac480,
+  0xd0bf2b79a453c915, 0xb6e140e86dcb97d5, 0x8de0ab74f93a8de1,
+  0x70f9bb989ce46c09, 0xd7ea17d64158d923, 0x308e3f8a527d0ff7,
+  0xa0fffd413b3a872f, 0xcd35b4b30dfb6587, 0x7ef3ab8b9bd5fbcf,
+  0x6149f604d9f355f7, 0x130d9020814780cd, 0x45cb969837f9a147,
+  0x88dc31c106a2345e, 0x690da693a3472e6d, 0xe1dc49aaab6d8504,
+  0x7749dc54f0a8f838, 0x358a1197921ed6e3, 0x50ae914d7b26c811,
+  0x6e0f79b3af64d1ad, 0xec45b7e54c408577, 0x94809242f830a52f,
+  0x88e8c0701fd8cd25, 0x21f562f903b85ca7, 0x3f8f1d2cfd57d394,
+  0x1f0db9fb1767b393, 0x0504a2b6a6b967d3, 0xf18209ff9dee356b,
+  0x4e74343f94f09cff, 0x53107e4bd79b52c1, 0x9c4ab4cdba0f0c2f,
+  0xfd085f652a3c3f14, 0xcbd20129e019e573, 0x92d2e7681d64d41b,
+  0xfa6c6c50db35a8fd, 0x7dc5177e0cc57261, 0xae3586379eed9e9d,
+  0x4ba340964a014d54, 0x57147f7d60a4a5ee, 0x423255e50fec612e,
+  0x1c1158e2a2afbace, 0x5e0dd39d591b341f, 0x4e0fff62124939a6,
+  0x12e0413146fa5c8d, 0x3a6e0c37d48699a0, 0x9774260521aa490f,
+  0xbd0f8ecc2b447c99, 0x556d41deab48dad8, 0x08bd36a5be98bc97,
+  0x8bf0c22eb1cb99a0, 0x959954221670e572, 0x05143412beae5a0c,
+  0x37246cbdf96ede32, 0xeb05ce52c11ab210, 0xd4e9c130ccd17048,
+  0x42cc9b6177b7547b, 0x96d603334e7a85c7, 0x850365d5d2f5adcb,
+  0xcfa11346e834516c, 0xfb9e30870be0c7bb, 0xc4d137ab85224e7a,
+  0xc7f20e98475c4ab3, 0xaf464d45151fec79, 0xe4ad336a38569bcd,
+  0xabd20fbf84b809bd, 0xb3643ed21050862a, 0xfb29924632f30a27,
+  0x3f4fd0809492521f, 0xcc9635ff080ba76d, 0xeb679199764753a7,
+  0x9df2de103f532b81, 0x83784f41703f0a31, 0x70ba6c249783efba,
+  0x93cf542badd6d441, 0x8290f3e7b7fcc9a6, 0xb55485e8fadf4677,
+  0xf29c554f7e99c1de, 0x277a3a2d674f10e9, 0xe9a5460c4d87bd2a,
+  0x0d8489866023402a, 0x6bd7d212c07df415, 0x8d6194cb592bebc3,
+  0xa9747f53b4cd4192, 0x56bd4c4c6373dcb9, 0x3385c9e222966cb2,
+  0x234bda6863a4f7fd, 0xebc79b310f06f538, 0x3b7556403468fc38,
+  0x9ac05c55de908490, 0x381dba9f8e05fd0e, 0x5e92d1853484e36a,
+  0x030782801735585f, 0xd8c76845c71a4482, 0xea03ea2ec2406c9b,
+  0xe2498a52f95cd21e, 0xd4ffe046d9393212, 0x93565efec984c6c9,
+  0x154c50d8c6e11dc9, 0x3cd889f3188c18cc, 0xb5a46a6cba1287ca,
+  0xbc203b6c8f21bb66, 0xfedf97cba4c35dea, 0x0c82b3d9520de017,
+  0xdb2674b14ddb4d95, 0x44c8e1ca851db784, 0x5596d3e27d211d55,
+  0x9dbe804695d2270d, 0xbd54af74b050b82a, 0xe4ea34515f120cea,
+  0xaa2564472972ab58, 0xf97af0d678dfd0cb, 0xdebdbc18d6c71bd1,
+  0x78423e11438fcb21, 0xf6f749d4f30510d4, 0x68de10085ea4c2ea,
+  0x6b3ff4773ccb4ec1, 0x33206eb82742f50e, 0x3046468ab04a0778,
+  0xd7168cc59b78654c, 0xcb5800e03e2f90d9, 0x4f8fdaa4a3b0b5ff,
+  0xe0eeff2c2ff94e64, 0x7f2578708dafae2e, 0x6feab0ef729b4300,
+  0xf1de49e2796cfdf5, 0x90711a9f7886a0d0, 0xf4b39401ae61d28a,
+  0x3f26008ddcbc47e9, 0xfab0a15c25a8511d, 0x2664fc987e7fdd17,
+  0x51125228da560a04, 0x93a545c6207a3d67, 0x7c8e4446a408cc25,
+  0xf9b10a00083f429e, 0x48704b0fc020d66c, 0x1e1a8c7a3d66eae0,
+  0x9bde8e4692e41915, 0x7144aad3cf672129, 0xbab5e713e8f5b335,
+  0x2d2c0b70c55d7d11, 0xed928a6e1b388ab0, 0xf121a4a71653448f,
+  0x0dd175d00c20e9ed, 0xe68066507fb5dcb1, 0x92384f914830a50e,
+  0xb4d4c84f220aed3d, 0xa13e4d6ea70cc5f0, 0xfdbe2223195bfa82,
+  0xe97bb465c3ca2099, 0x0078ec86e8daa6c0, 0x634c3a1311b805c4,
+  0xac04a89119ae79a7, 0x690e7049d8e8762f, 0x0000000000000086,
+  0x0000000000000000,
+};
+
+#define perftest_aesXXX_var_sz(a)                                             \
+  void __test_perf_fn perftest_aes##a##_var_sz (test_perf_t *tp)              \
+  {                                                                           \
+    u32 n = tp->n_ops;                                                        \
+    aes_ctr_key_data_t *kd = test_mem_alloc (sizeof (*kd));                   \
+    u8 *dst = test_mem_alloc (n + 16);                                        \
+    u8 *src = test_mem_alloc_and_fill_inc_u8 (n + 16, 0, 0);                  \
+    u8 *key = test_mem_alloc_and_fill_inc_u8 (32, 192, 0);                    \
+    u8 *iv = test_mem_alloc_and_fill_inc_u8 (16, 128, 0);                     \
+                                                                              \
+    clib_aes_ctr_key_expand (kd, key, AES_KEY_##a);                           \
+                                                                              \
+    test_perf_event_enable (tp);                                              \
+    clib_aes##a##_ctr (kd, src, n, iv, dst);                                  \
+    test_perf_event_disable (tp);                                             \
+  }
+
+static clib_error_t *
+test_clib_aes128_ctr (clib_error_t *err)
+{
+  aes_ctr_key_data_t kd;
+  aes_ctr_ctx_t ctx;
+  u8 pt[INC_TEST_BYTES];
+  u8 ct[INC_TEST_BYTES];
+
+  FOREACH_ARRAY_ELT (tc, test_cases128)
+    {
+      clib_aes_ctr_key_expand (&kd, tc->key, AES_KEY_128);
+      clib_aes128_ctr (&kd, tc->pt, tc->data_len, tc->iv, ct);
+
+      if (tc->data_len && memcmp (tc->ct, ct, tc->data_len) != 0)
+	return clib_error_return (err, "%s: invalid ciphertext", tc->name);
+    }
+
+  for (int i = 0; i < sizeof (pt); i++)
+    pt[i] = i;
+
+  clib_aes_ctr_key_expand (&kd, inc_key128, AES_KEY_128);
+  clib_aes128_ctr (&kd, pt, INC_TEST_BYTES, inc_iv, ct);
+  for (int i = 0; i < sizeof (pt); i++)
+    if (((u8 *) inc_ct128)[i] != ct[i])
+      return clib_error_return (err, "incremental test failed (byte %u)", i);
+
+  clib_aes_ctr_init (&ctx, &kd, inc_iv, AES_KEY_128);
+  for (u32 off = 0, chunk_size = 1; off < INC_TEST_BYTES;
+       off += chunk_size, chunk_size = clib_min (((chunk_size + 1) * 2 - 1),
+						 INC_TEST_BYTES - off))
+    clib_aes_ctr_transform (&ctx, pt + off, ct + off, chunk_size, AES_KEY_128);
+
+  for (int i = 0; i < sizeof (pt); i++)
+    if (((u8 *) inc_ct128)[i] != ct[i])
+      return clib_error_return (
+	err, "incremental multiseg test failed (byte %u)", i);
+
+  return err;
+}
+
+perftest_aesXXX_var_sz (128);
+REGISTER_TEST (clib_aes128_ctr) = {
+  .name = "clib_aes128_ctr",
+  .fn = test_clib_aes128_ctr,
+  .perf_tests = PERF_TESTS ({ .name = "variable size (per byte)",
+			      .n_ops = 1424,
+			      .fn = perftest_aes128_var_sz },
+			    { .name = "variable size (per byte)",
+			      .n_ops = 1 << 20,
+			      .fn = perftest_aes128_var_sz }),
+};
+
+static clib_error_t *
+test_clib_aes192_ctr (clib_error_t *err)
+{
+  aes_ctr_key_data_t kd;
+  u8 ct[MAX_TEST_DATA_LEN];
+
+  FOREACH_ARRAY_ELT (tc, test_cases192)
+    {
+      clib_aes_ctr_key_expand (&kd, tc->key, AES_KEY_192);
+      clib_aes192_ctr (&kd, tc->pt, tc->data_len, tc->iv, ct);
+
+      if (tc->data_len && memcmp (tc->ct, ct, tc->data_len) != 0)
+	return clib_error_return (err, "%s: invalid ciphertext", tc->name);
+    }
+
+  return err;
+}
+
+perftest_aesXXX_var_sz (192);
+REGISTER_TEST (clib_aes192_ctr) = {
+  .name = "clib_aes192_ctr",
+  .fn = test_clib_aes192_ctr,
+  .perf_tests = PERF_TESTS ({ .name = "variable size (per byte)",
+			      .n_ops = 1424,
+			      .fn = perftest_aes192_var_sz },
+			    { .name = "variable size (per byte)",
+			      .n_ops = 1 << 20,
+			      .fn = perftest_aes192_var_sz }),
+};
+
+static clib_error_t *
+test_clib_aes256_ctr (clib_error_t *err)
+{
+  aes_ctr_key_data_t kd;
+  u8 ct[MAX_TEST_DATA_LEN];
+
+  FOREACH_ARRAY_ELT (tc, test_cases256)
+    {
+      aes_ctr_ctx_t ctx;
+      u32 sz = tc->data_len / 3;
+
+      clib_aes_ctr_key_expand (&kd, tc->key, AES_KEY_256);
+      clib_aes256_ctr (&kd, tc->pt, tc->data_len, tc->iv, ct);
+
+      if (tc->data_len && memcmp (tc->ct, ct, tc->data_len) != 0)
+	return clib_error_return (err, "%s: invalid ciphertext", tc->name);
+      clib_memset (ct, 0, tc->data_len);
+
+      clib_aes_ctr_init (&ctx, &kd, tc->iv, AES_KEY_256);
+      clib_aes_ctr_transform (&ctx, tc->pt, ct, sz, AES_KEY_256);
+      clib_aes_ctr_transform (&ctx, tc->pt + sz, ct + sz, sz, AES_KEY_256);
+      clib_aes_ctr_transform (&ctx, tc->pt + 2 * sz, ct + 2 * sz,
+			      tc->data_len - 2 * sz, AES_KEY_256);
+      if (tc->data_len && memcmp (tc->ct, ct, tc->data_len) != 0)
+	return clib_error_return (err, "%s: invalid ciphertext (multiseg)",
+				  tc->name);
+    }
+
+  return err;
+}
+
+perftest_aesXXX_var_sz (256);
+REGISTER_TEST (clib_aes256_ctr) = {
+  .name = "clib_aes256_ctr",
+  .fn = test_clib_aes256_ctr,
+  .perf_tests = PERF_TESTS ({ .name = "variable size (per byte)",
+			      .n_ops = 1424,
+			      .fn = perftest_aes256_var_sz },
+			    { .name = "variable size (per byte)",
+			      .n_ops = 1 << 20,
+			      .fn = perftest_aes256_var_sz }),
+};
+
+#endif