Merged origin/release (checked in because wanted to merge new stuff)

1 files changed, 970 insertions, 0 deletions

diff --git a/openssl/crypto/evp/e_aes_cbc_hmac_sha256.c b/openssl/crypto/evp/e_aes_cbc_hmac_sha256.c
new file mode 100755
index 000000000..30398c7ca
--- /dev/null
+++ b/openssl/crypto/evp/e_aes_cbc_hmac_sha256.c
@@ -0,0 +1,970 @@
+/* ====================================================================
+ * Copyright (c) 2011-2013 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ */
+
+#include <openssl/opensslconf.h>
+
+#include <stdio.h>
+#include <string.h>
+
+#if !defined(OPENSSL_NO_AES) && !defined(OPENSSL_NO_SHA256)
+
+# include <openssl/evp.h>
+# include <openssl/objects.h>
+# include <openssl/aes.h>
+# include <openssl/sha.h>
+# include <openssl/rand.h>
+# include "modes_lcl.h"
+
+# ifndef EVP_CIPH_FLAG_AEAD_CIPHER
+#  define EVP_CIPH_FLAG_AEAD_CIPHER       0x200000
+#  define EVP_CTRL_AEAD_TLS1_AAD          0x16
+#  define EVP_CTRL_AEAD_SET_MAC_KEY       0x17
+# endif
+
+# if !defined(EVP_CIPH_FLAG_DEFAULT_ASN1)
+#  define EVP_CIPH_FLAG_DEFAULT_ASN1 0
+# endif
+
+# if !defined(EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK)
+#  define EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK 0
+# endif
+
+# define TLS1_1_VERSION 0x0302
+
+typedef struct {
+    AES_KEY ks;
+    SHA256_CTX head, tail, md;
+    size_t payload_length;      /* AAD length in decrypt case */
+    union {
+        unsigned int tls_ver;
+        unsigned char tls_aad[16]; /* 13 used */
+    } aux;
+} EVP_AES_HMAC_SHA256;
+
+# define NO_PAYLOAD_LENGTH       ((size_t)-1)
+
+# if     defined(AES_ASM) &&     ( \
+        defined(__x86_64)       || defined(__x86_64__)  || \
+        defined(_M_AMD64)       || defined(_M_X64)      || \
+        defined(__INTEL__)      )
+
+extern unsigned int OPENSSL_ia32cap_P[3];
+#  define AESNI_CAPABLE   (1<<(57-32))
+
+int aesni_set_encrypt_key(const unsigned char *userKey, int bits,
+                          AES_KEY *key);
+int aesni_set_decrypt_key(const unsigned char *userKey, int bits,
+                          AES_KEY *key);
+
+void aesni_cbc_encrypt(const unsigned char *in,
+                       unsigned char *out,
+                       size_t length,
+                       const AES_KEY *key, unsigned char *ivec, int enc);
+
+int aesni_cbc_sha256_enc(const void *inp, void *out, size_t blocks,
+                         const AES_KEY *key, unsigned char iv[16],
+                         SHA256_CTX *ctx, const void *in0);
+
+#  define data(ctx) ((EVP_AES_HMAC_SHA256 *)(ctx)->cipher_data)
+
+static int aesni_cbc_hmac_sha256_init_key(EVP_CIPHER_CTX *ctx,
+                                          const unsigned char *inkey,
+                                          const unsigned char *iv, int enc)
+{
+    EVP_AES_HMAC_SHA256 *key = data(ctx);
+    int ret;
+
+    if (enc)
+        memset(&key->ks, 0, sizeof(key->ks.rd_key)),
+            ret = aesni_set_encrypt_key(inkey, ctx->key_len * 8, &key->ks);
+    else
+        ret = aesni_set_decrypt_key(inkey, ctx->key_len * 8, &key->ks);
+
+    SHA256_Init(&key->head);    /* handy when benchmarking */
+    key->tail = key->head;
+    key->md = key->head;
+
+    key->payload_length = NO_PAYLOAD_LENGTH;
+
+    return ret < 0 ? 0 : 1;
+}
+
+#  define STITCHED_CALL
+
+#  if !defined(STITCHED_CALL)
+#   define aes_off 0
+#  endif
+
+void sha256_block_data_order(void *c, const void *p, size_t len);
+
+static void sha256_update(SHA256_CTX *c, const void *data, size_t len)
+{
+    const unsigned char *ptr = data;
+    size_t res;
+
+    if ((res = c->num)) {
+        res = SHA256_CBLOCK - res;
+        if (len < res)
+            res = len;
+        SHA256_Update(c, ptr, res);
+        ptr += res;
+        len -= res;
+    }
+
+    res = len % SHA256_CBLOCK;
+    len -= res;
+
+    if (len) {
+        sha256_block_data_order(c, ptr, len / SHA256_CBLOCK);
+
+        ptr += len;
+        c->Nh += len >> 29;
+        c->Nl += len <<= 3;
+        if (c->Nl < (unsigned int)len)
+            c->Nh++;
+    }
+
+    if (res)
+        SHA256_Update(c, ptr, res);
+}
+
+#  ifdef SHA256_Update
+#   undef SHA256_Update
+#  endif
+#  define SHA256_Update sha256_update
+
+#  if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
+
+typedef struct {
+    unsigned int A[8], B[8], C[8], D[8], E[8], F[8], G[8], H[8];
+} SHA256_MB_CTX;
+typedef struct {
+    const unsigned char *ptr;
+    int blocks;
+} HASH_DESC;
+
+void sha256_multi_block(SHA256_MB_CTX *, const HASH_DESC *, int);
+
+typedef struct {
+    const unsigned char *inp;
+    unsigned char *out;
+    int blocks;
+    u64 iv[2];
+} CIPH_DESC;
+
+void aesni_multi_cbc_encrypt(CIPH_DESC *, void *, int);
+
+static size_t tls1_1_multi_block_encrypt(EVP_AES_HMAC_SHA256 *key,
+                                         unsigned char *out,
+                                         const unsigned char *inp,
+                                         size_t inp_len, int n4x)
+{                               /* n4x is 1 or 2 */
+    HASH_DESC hash_d[8], edges[8];
+    CIPH_DESC ciph_d[8];
+    unsigned char storage[sizeof(SHA256_MB_CTX) + 32];
+    union {
+        u64 q[16];
+        u32 d[32];
+        u8 c[128];
+    } blocks[8];
+    SHA256_MB_CTX *ctx;
+    unsigned int frag, last, packlen, i, x4 = 4 * n4x, minblocks, processed =
+        0;
+    size_t ret = 0;
+    u8 *IVs;
+#   if defined(BSWAP8)
+    u64 seqnum;
+#   endif
+
+    /* ask for IVs in bulk */
+    if (RAND_bytes((IVs = blocks[0].c), 16 * x4) <= 0)
+        return 0;
+
+    /* align */
+    ctx = (SHA256_MB_CTX *) (storage + 32 - ((size_t)storage % 32));
+
+    frag = (unsigned int)inp_len >> (1 + n4x);
+    last = (unsigned int)inp_len + frag - (frag << (1 + n4x));
+    if (last > frag && ((last + 13 + 9) % 64) < (x4 - 1)) {
+        frag++;
+        last -= x4 - 1;
+    }
+
+    packlen = 5 + 16 + ((frag + 32 + 16) & -16);
+
+    /* populate descriptors with pointers and IVs */
+    hash_d[0].ptr = inp;
+    ciph_d[0].inp = inp;
+    /* 5+16 is place for header and explicit IV */
+    ciph_d[0].out = out + 5 + 16;
+    memcpy(ciph_d[0].out - 16, IVs, 16);
+    memcpy(ciph_d[0].iv, IVs, 16);
+    IVs += 16;
+
+    for (i = 1; i < x4; i++) {
+        ciph_d[i].inp = hash_d[i].ptr = hash_d[i - 1].ptr + frag;
+        ciph_d[i].out = ciph_d[i - 1].out + packlen;
+        memcpy(ciph_d[i].out - 16, IVs, 16);
+        memcpy(ciph_d[i].iv, IVs, 16);
+        IVs += 16;
+    }
+
+#   if defined(BSWAP8)
+    memcpy(blocks[0].c, key->md.data, 8);
+    seqnum = BSWAP8(blocks[0].q[0]);
+#   endif
+    for (i = 0; i < x4; i++) {
+        unsigned int len = (i == (x4 - 1) ? last : frag);
+#   if !defined(BSWAP8)
+        unsigned int carry, j;
+#   endif
+
+        ctx->A[i] = key->md.h[0];
+        ctx->B[i] = key->md.h[1];
+        ctx->C[i] = key->md.h[2];
+        ctx->D[i] = key->md.h[3];
+        ctx->E[i] = key->md.h[4];
+        ctx->F[i] = key->md.h[5];
+        ctx->G[i] = key->md.h[6];
+        ctx->H[i] = key->md.h[7];
+
+        /* fix seqnum */
+#   if defined(BSWAP8)
+        blocks[i].q[0] = BSWAP8(seqnum + i);
+#   else
+        for (carry = i, j = 8; j--;) {
+            blocks[i].c[j] = ((u8 *)key->md.data)[j] + carry;
+            carry = (blocks[i].c[j] - carry) >> (sizeof(carry) * 8 - 1);
+        }
+#   endif
+        blocks[i].c[8] = ((u8 *)key->md.data)[8];
+        blocks[i].c[9] = ((u8 *)key->md.data)[9];
+        blocks[i].c[10] = ((u8 *)key->md.data)[10];
+        /* fix length */
+        blocks[i].c[11] = (u8)(len >> 8);
+        blocks[i].c[12] = (u8)(len);
+
+        memcpy(blocks[i].c + 13, hash_d[i].ptr, 64 - 13);
+        hash_d[i].ptr += 64 - 13;
+        hash_d[i].blocks = (len - (64 - 13)) / 64;
+
+        edges[i].ptr = blocks[i].c;
+        edges[i].blocks = 1;
+    }
+
+    /* hash 13-byte headers and first 64-13 bytes of inputs */
+    sha256_multi_block(ctx, edges, n4x);
+    /* hash bulk inputs */
+#   define MAXCHUNKSIZE    2048
+#   if     MAXCHUNKSIZE%64
+#    error  "MAXCHUNKSIZE is not divisible by 64"
+#   elif   MAXCHUNKSIZE
+    /*
+     * goal is to minimize pressure on L1 cache by moving in shorter steps,
+     * so that hashed data is still in the cache by the time we encrypt it
+     */
+    minblocks = ((frag <= last ? frag : last) - (64 - 13)) / 64;
+    if (minblocks > MAXCHUNKSIZE / 64) {
+        for (i = 0; i < x4; i++) {
+            edges[i].ptr = hash_d[i].ptr;
+            edges[i].blocks = MAXCHUNKSIZE / 64;
+            ciph_d[i].blocks = MAXCHUNKSIZE / 16;
+        }
+        do {
+            sha256_multi_block(ctx, edges, n4x);
+            aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x);
+
+            for (i = 0; i < x4; i++) {
+                edges[i].ptr = hash_d[i].ptr += MAXCHUNKSIZE;
+                hash_d[i].blocks -= MAXCHUNKSIZE / 64;
+                edges[i].blocks = MAXCHUNKSIZE / 64;
+                ciph_d[i].inp += MAXCHUNKSIZE;
+                ciph_d[i].out += MAXCHUNKSIZE;
+                ciph_d[i].blocks = MAXCHUNKSIZE / 16;
+                memcpy(ciph_d[i].iv, ciph_d[i].out - 16, 16);
+            }
+            processed += MAXCHUNKSIZE;
+            minblocks -= MAXCHUNKSIZE / 64;
+        } while (minblocks > MAXCHUNKSIZE / 64);
+    }
+#   endif
+#   undef  MAXCHUNKSIZE
+    sha256_multi_block(ctx, hash_d, n4x);
+
+    memset(blocks, 0, sizeof(blocks));
+    for (i = 0; i < x4; i++) {
+        unsigned int len = (i == (x4 - 1) ? last : frag),
+            off = hash_d[i].blocks * 64;
+        const unsigned char *ptr = hash_d[i].ptr + off;
+
+        off = (len - processed) - (64 - 13) - off; /* remainder actually */
+        memcpy(blocks[i].c, ptr, off);
+        blocks[i].c[off] = 0x80;
+        len += 64 + 13;         /* 64 is HMAC header */
+        len *= 8;               /* convert to bits */
+        if (off < (64 - 8)) {
+#   ifdef BSWAP4
+            blocks[i].d[15] = BSWAP4(len);
+#   else
+            PUTU32(blocks[i].c + 60, len);
+#   endif
+            edges[i].blocks = 1;
+        } else {
+#   ifdef BSWAP4
+            blocks[i].d[31] = BSWAP4(len);
+#   else
+            PUTU32(blocks[i].c + 124, len);
+#   endif
+            edges[i].blocks = 2;
+        }
+        edges[i].ptr = blocks[i].c;
+    }
+
+    /* hash input tails and finalize */
+    sha256_multi_block(ctx, edges, n4x);
+
+    memset(blocks, 0, sizeof(blocks));
+    for (i = 0; i < x4; i++) {
+#   ifdef BSWAP4
+        blocks[i].d[0] = BSWAP4(ctx->A[i]);
+        ctx->A[i] = key->tail.h[0];
+        blocks[i].d[1] = BSWAP4(ctx->B[i]);
+        ctx->B[i] = key->tail.h[1];
+        blocks[i].d[2] = BSWAP4(ctx->C[i]);
+        ctx->C[i] = key->tail.h[2];
+        blocks[i].d[3] = BSWAP4(ctx->D[i]);
+        ctx->D[i] = key->tail.h[3];
+        blocks[i].d[4] = BSWAP4(ctx->E[i]);
+        ctx->E[i] = key->tail.h[4];
+        blocks[i].d[5] = BSWAP4(ctx->F[i]);
+        ctx->F[i] = key->tail.h[5];
+        blocks[i].d[6] = BSWAP4(ctx->G[i]);
+        ctx->G[i] = key->tail.h[6];
+        blocks[i].d[7] = BSWAP4(ctx->H[i]);
+        ctx->H[i] = key->tail.h[7];
+        blocks[i].c[32] = 0x80;
+        blocks[i].d[15] = BSWAP4((64 + 32) * 8);
+#   else
+        PUTU32(blocks[i].c + 0, ctx->A[i]);
+        ctx->A[i] = key->tail.h[0];
+        PUTU32(blocks[i].c + 4, ctx->B[i]);
+        ctx->B[i] = key->tail.h[1];
+        PUTU32(blocks[i].c + 8, ctx->C[i]);
+        ctx->C[i] = key->tail.h[2];
+        PUTU32(blocks[i].c + 12, ctx->D[i]);
+        ctx->D[i] = key->tail.h[3];
+        PUTU32(blocks[i].c + 16, ctx->E[i]);
+        ctx->E[i] = key->tail.h[4];
+        PUTU32(blocks[i].c + 20, ctx->F[i]);
+        ctx->F[i] = key->tail.h[5];
+        PUTU32(blocks[i].c + 24, ctx->G[i]);
+        ctx->G[i] = key->tail.h[6];
+        PUTU32(blocks[i].c + 28, ctx->H[i]);
+        ctx->H[i] = key->tail.h[7];
+        blocks[i].c[32] = 0x80;
+        PUTU32(blocks[i].c + 60, (64 + 32) * 8);
+#   endif
+        edges[i].ptr = blocks[i].c;
+        edges[i].blocks = 1;
+    }
+
+    /* finalize MACs */
+    sha256_multi_block(ctx, edges, n4x);
+
+    for (i = 0; i < x4; i++) {
+        unsigned int len = (i == (x4 - 1) ? last : frag), pad, j;
+        unsigned char *out0 = out;
+
+        memcpy(ciph_d[i].out, ciph_d[i].inp, len - processed);
+        ciph_d[i].inp = ciph_d[i].out;
+
+        out += 5 + 16 + len;
+
+        /* write MAC */
+        PUTU32(out + 0, ctx->A[i]);
+        PUTU32(out + 4, ctx->B[i]);
+        PUTU32(out + 8, ctx->C[i]);
+        PUTU32(out + 12, ctx->D[i]);
+        PUTU32(out + 16, ctx->E[i]);
+        PUTU32(out + 20, ctx->F[i]);
+        PUTU32(out + 24, ctx->G[i]);
+        PUTU32(out + 28, ctx->H[i]);
+        out += 32;
+        len += 32;
+
+        /* pad */
+        pad = 15 - len % 16;
+        for (j = 0; j <= pad; j++)
+            *(out++) = pad;
+        len += pad + 1;
+
+        ciph_d[i].blocks = (len - processed) / 16;
+        len += 16;              /* account for explicit iv */
+
+        /* arrange header */
+        out0[0] = ((u8 *)key->md.data)[8];
+        out0[1] = ((u8 *)key->md.data)[9];
+        out0[2] = ((u8 *)key->md.data)[10];
+        out0[3] = (u8)(len >> 8);
+        out0[4] = (u8)(len);
+
+        ret += len + 5;
+        inp += frag;
+    }
+
+    aesni_multi_cbc_encrypt(ciph_d, &key->ks, n4x);
+
+    OPENSSL_cleanse(blocks, sizeof(blocks));
+    OPENSSL_cleanse(ctx, sizeof(*ctx));
+
+    return ret;
+}
+#  endif
+
+static int aesni_cbc_hmac_sha256_cipher(EVP_CIPHER_CTX *ctx,
+                                        unsigned char *out,
+                                        const unsigned char *in, size_t len)
+{
+    EVP_AES_HMAC_SHA256 *key = data(ctx);
+    unsigned int l;
+    size_t plen = key->payload_length, iv = 0, /* explicit IV in TLS 1.1 and
+                                                * later */
+        sha_off = 0;
+#  if defined(STITCHED_CALL)
+    size_t aes_off = 0, blocks;
+
+    sha_off = SHA256_CBLOCK - key->md.num;
+#  endif
+
+    key->payload_length = NO_PAYLOAD_LENGTH;
+
+    if (len % AES_BLOCK_SIZE)
+        return 0;
+
+    if (ctx->encrypt) {
+        if (plen == NO_PAYLOAD_LENGTH)
+            plen = len;
+        else if (len !=
+                 ((plen + SHA256_DIGEST_LENGTH +
+                   AES_BLOCK_SIZE) & -AES_BLOCK_SIZE))
+            return 0;
+        else if (key->aux.tls_ver >= TLS1_1_VERSION)
+            iv = AES_BLOCK_SIZE;
+
+#  if defined(STITCHED_CALL)
+        if (OPENSSL_ia32cap_P[1] & (1 << (60 - 32)) && /* AVX? */
+            plen > (sha_off + iv) &&
+            (blocks = (plen - (sha_off + iv)) / SHA256_CBLOCK)) {
+            SHA256_Update(&key->md, in + iv, sha_off);
+
+            (void)aesni_cbc_sha256_enc(in, out, blocks, &key->ks,
+                                       ctx->iv, &key->md, in + iv + sha_off);
+            blocks *= SHA256_CBLOCK;
+            aes_off += blocks;
+            sha_off += blocks;
+            key->md.Nh += blocks >> 29;
+            key->md.Nl += blocks <<= 3;
+            if (key->md.Nl < (unsigned int)blocks)
+                key->md.Nh++;
+        } else {
+            sha_off = 0;
+        }
+#  endif
+        sha_off += iv;
+        SHA256_Update(&key->md, in + sha_off, plen - sha_off);
+
+        if (plen != len) {      /* "TLS" mode of operation */
+            if (in != out)
+                memcpy(out + aes_off, in + aes_off, plen - aes_off);
+
+            /* calculate HMAC and append it to payload */
+            SHA256_Final(out + plen, &key->md);
+            key->md = key->tail;
+            SHA256_Update(&key->md, out + plen, SHA256_DIGEST_LENGTH);
+            SHA256_Final(out + plen, &key->md);
+
+            /* pad the payload|hmac */
+            plen += SHA256_DIGEST_LENGTH;
+            for (l = len - plen - 1; plen < len; plen++)
+                out[plen] = l;
+            /* encrypt HMAC|padding at once */
+            aesni_cbc_encrypt(out + aes_off, out + aes_off, len - aes_off,
+                              &key->ks, ctx->iv, 1);
+        } else {
+            aesni_cbc_encrypt(in + aes_off, out + aes_off, len - aes_off,
+                              &key->ks, ctx->iv, 1);
+        }
+    } else {
+        union {
+            unsigned int u[SHA256_DIGEST_LENGTH / sizeof(unsigned int)];
+            unsigned char c[64 + SHA256_DIGEST_LENGTH];
+        } mac, *pmac;
+
+        /* arrange cache line alignment */
+        pmac = (void *)(((size_t)mac.c + 63) & ((size_t)0 - 64));
+
+        /* decrypt HMAC|padding at once */
+        aesni_cbc_encrypt(in, out, len, &key->ks, ctx->iv, 0);
+
+        if (plen != NO_PAYLOAD_LENGTH) { /* "TLS" mode of operation */
+            size_t inp_len, mask, j, i;
+            unsigned int res, maxpad, pad, bitlen;
+            int ret = 1;
+            union {
+                unsigned int u[SHA_LBLOCK];
+                unsigned char c[SHA256_CBLOCK];
+            } *data = (void *)key->md.data;
+
+            if ((key->aux.tls_aad[plen - 4] << 8 | key->aux.tls_aad[plen - 3])
+                >= TLS1_1_VERSION)
+                iv = AES_BLOCK_SIZE;
+
+            if (len < (iv + SHA256_DIGEST_LENGTH + 1))
+                return 0;
+
+            /* omit explicit iv */
+            out += iv;
+            len -= iv;
+
+            /* figure out payload length */
+            pad = out[len - 1];
+            maxpad = len - (SHA256_DIGEST_LENGTH + 1);
+            maxpad |= (255 - maxpad) >> (sizeof(maxpad) * 8 - 8);
+            maxpad &= 255;
+
+            inp_len = len - (SHA256_DIGEST_LENGTH + pad + 1);
+            mask = (0 - ((inp_len - len) >> (sizeof(inp_len) * 8 - 1)));
+            inp_len &= mask;
+            ret &= (int)mask;
+
+            key->aux.tls_aad[plen - 2] = inp_len >> 8;
+            key->aux.tls_aad[plen - 1] = inp_len;
+
+            /* calculate HMAC */
+            key->md = key->head;
+            SHA256_Update(&key->md, key->aux.tls_aad, plen);
+
+#  if 1
+            len -= SHA256_DIGEST_LENGTH; /* amend mac */
+            if (len >= (256 + SHA256_CBLOCK)) {
+                j = (len - (256 + SHA256_CBLOCK)) & (0 - SHA256_CBLOCK);
+                j += SHA256_CBLOCK - key->md.num;
+                SHA256_Update(&key->md, out, j);
+                out += j;
+                len -= j;
+                inp_len -= j;
+            }
+
+            /* but pretend as if we hashed padded payload */
+            bitlen = key->md.Nl + (inp_len << 3); /* at most 18 bits */
+#   ifdef BSWAP4
+            bitlen = BSWAP4(bitlen);
+#   else
+            mac.c[0] = 0;
+            mac.c[1] = (unsigned char)(bitlen >> 16);
+            mac.c[2] = (unsigned char)(bitlen >> 8);
+            mac.c[3] = (unsigned char)bitlen;
+            bitlen = mac.u[0];
+#   endif
+
+            pmac->u[0] = 0;
+            pmac->u[1] = 0;
+            pmac->u[2] = 0;
+            pmac->u[3] = 0;
+            pmac->u[4] = 0;
+            pmac->u[5] = 0;
+            pmac->u[6] = 0;
+            pmac->u[7] = 0;
+
+            for (res = key->md.num, j = 0; j < len; j++) {
+                size_t c = out[j];
+                mask = (j - inp_len) >> (sizeof(j) * 8 - 8);
+                c &= mask;
+                c |= 0x80 & ~mask & ~((inp_len - j) >> (sizeof(j) * 8 - 8));
+                data->c[res++] = (unsigned char)c;
+
+                if (res != SHA256_CBLOCK)
+                    continue;
+
+                /* j is not incremented yet */
+                mask = 0 - ((inp_len + 7 - j) >> (sizeof(j) * 8 - 1));
+                data->u[SHA_LBLOCK - 1] |= bitlen & mask;
+                sha256_block_data_order(&key->md, data, 1);
+                mask &= 0 - ((j - inp_len - 72) >> (sizeof(j) * 8 - 1));
+                pmac->u[0] |= key->md.h[0] & mask;
+                pmac->u[1] |= key->md.h[1] & mask;
+                pmac->u[2] |= key->md.h[2] & mask;
+                pmac->u[3] |= key->md.h[3] & mask;
+                pmac->u[4] |= key->md.h[4] & mask;
+                pmac->u[5] |= key->md.h[5] & mask;
+                pmac->u[6] |= key->md.h[6] & mask;
+                pmac->u[7] |= key->md.h[7] & mask;
+                res = 0;
+            }
+
+            for (i = res; i < SHA256_CBLOCK; i++, j++)
+                data->c[i] = 0;
+
+            if (res > SHA256_CBLOCK - 8) {
+                mask = 0 - ((inp_len + 8 - j) >> (sizeof(j) * 8 - 1));
+                data->u[SHA_LBLOCK - 1] |= bitlen & mask;
+                sha256_block_data_order(&key->md, data, 1);
+                mask &= 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
+                pmac->u[0] |= key->md.h[0] & mask;
+                pmac->u[1] |= key->md.h[1] & mask;
+                pmac->u[2] |= key->md.h[2] & mask;
+                pmac->u[3] |= key->md.h[3] & mask;
+                pmac->u[4] |= key->md.h[4] & mask;
+                pmac->u[5] |= key->md.h[5] & mask;
+                pmac->u[6] |= key->md.h[6] & mask;
+                pmac->u[7] |= key->md.h[7] & mask;
+
+                memset(data, 0, SHA256_CBLOCK);
+                j += 64;
+            }
+            data->u[SHA_LBLOCK - 1] = bitlen;
+            sha256_block_data_order(&key->md, data, 1);
+            mask = 0 - ((j - inp_len - 73) >> (sizeof(j) * 8 - 1));
+            pmac->u[0] |= key->md.h[0] & mask;
+            pmac->u[1] |= key->md.h[1] & mask;
+            pmac->u[2] |= key->md.h[2] & mask;
+            pmac->u[3] |= key->md.h[3] & mask;
+            pmac->u[4] |= key->md.h[4] & mask;
+            pmac->u[5] |= key->md.h[5] & mask;
+            pmac->u[6] |= key->md.h[6] & mask;
+            pmac->u[7] |= key->md.h[7] & mask;
+
+#   ifdef BSWAP4
+            pmac->u[0] = BSWAP4(pmac->u[0]);
+            pmac->u[1] = BSWAP4(pmac->u[1]);
+            pmac->u[2] = BSWAP4(pmac->u[2]);
+            pmac->u[3] = BSWAP4(pmac->u[3]);
+            pmac->u[4] = BSWAP4(pmac->u[4]);
+            pmac->u[5] = BSWAP4(pmac->u[5]);
+            pmac->u[6] = BSWAP4(pmac->u[6]);
+            pmac->u[7] = BSWAP4(pmac->u[7]);
+#   else
+            for (i = 0; i < 8; i++) {
+                res = pmac->u[i];
+                pmac->c[4 * i + 0] = (unsigned char)(res >> 24);
+                pmac->c[4 * i + 1] = (unsigned char)(res >> 16);
+                pmac->c[4 * i + 2] = (unsigned char)(res >> 8);
+                pmac->c[4 * i + 3] = (unsigned char)res;
+            }
+#   endif
+            len += SHA256_DIGEST_LENGTH;
+#  else
+            SHA256_Update(&key->md, out, inp_len);
+            res = key->md.num;
+            SHA256_Final(pmac->c, &key->md);
+
+            {
+                unsigned int inp_blocks, pad_blocks;
+
+                /* but pretend as if we hashed padded payload */
+                inp_blocks =
+                    1 + ((SHA256_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1));
+                res += (unsigned int)(len - inp_len);
+                pad_blocks = res / SHA256_CBLOCK;
+                res %= SHA256_CBLOCK;
+                pad_blocks +=
+                    1 + ((SHA256_CBLOCK - 9 - res) >> (sizeof(res) * 8 - 1));
+                for (; inp_blocks < pad_blocks; inp_blocks++)
+                    sha1_block_data_order(&key->md, data, 1);
+            }
+#  endif
+            key->md = key->tail;
+            SHA256_Update(&key->md, pmac->c, SHA256_DIGEST_LENGTH);
+            SHA256_Final(pmac->c, &key->md);
+
+            /* verify HMAC */
+            out += inp_len;
+            len -= inp_len;
+#  if 1
+            {
+                unsigned char *p =
+                    out + len - 1 - maxpad - SHA256_DIGEST_LENGTH;
+                size_t off = out - p;
+                unsigned int c, cmask;
+
+                maxpad += SHA256_DIGEST_LENGTH;
+                for (res = 0, i = 0, j = 0; j < maxpad; j++) {
+                    c = p[j];
+                    cmask =
+                        ((int)(j - off - SHA256_DIGEST_LENGTH)) >>
+                        (sizeof(int) * 8 - 1);
+                    res |= (c ^ pad) & ~cmask; /* ... and padding */
+                    cmask &= ((int)(off - 1 - j)) >> (sizeof(int) * 8 - 1);
+                    res |= (c ^ pmac->c[i]) & cmask;
+                    i += 1 & cmask;
+                }
+                maxpad -= SHA256_DIGEST_LENGTH;
+
+                res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
+                ret &= (int)~res;
+            }
+#  else
+            for (res = 0, i = 0; i < SHA256_DIGEST_LENGTH; i++)
+                res |= out[i] ^ pmac->c[i];
+            res = 0 - ((0 - res) >> (sizeof(res) * 8 - 1));
+            ret &= (int)~res;
+
+            /* verify padding */
+            pad = (pad & ~res) | (maxpad & res);
+            out = out + len - 1 - pad;
+            for (res = 0, i = 0; i < pad; i++)
+                res |= out[i] ^ pad;
+
+            res = (0 - res) >> (sizeof(res) * 8 - 1);
+            ret &= (int)~res;
+#  endif
+            return ret;
+        } else {
+            SHA256_Update(&key->md, out, len);
+        }
+    }
+
+    return 1;
+}
+
+static int aesni_cbc_hmac_sha256_ctrl(EVP_CIPHER_CTX *ctx, int type, int arg,
+                                      void *ptr)
+{
+    EVP_AES_HMAC_SHA256 *key = data(ctx);
+
+    switch (type) {
+    case EVP_CTRL_AEAD_SET_MAC_KEY:
+        {
+            unsigned int i;
+            unsigned char hmac_key[64];
+
+            memset(hmac_key, 0, sizeof(hmac_key));
+
+            if (arg > (int)sizeof(hmac_key)) {
+                SHA256_Init(&key->head);
+                SHA256_Update(&key->head, ptr, arg);
+                SHA256_Final(hmac_key, &key->head);
+            } else {
+                memcpy(hmac_key, ptr, arg);
+            }
+
+            for (i = 0; i < sizeof(hmac_key); i++)
+                hmac_key[i] ^= 0x36; /* ipad */
+            SHA256_Init(&key->head);
+            SHA256_Update(&key->head, hmac_key, sizeof(hmac_key));
+
+            for (i = 0; i < sizeof(hmac_key); i++)
+                hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */
+            SHA256_Init(&key->tail);
+            SHA256_Update(&key->tail, hmac_key, sizeof(hmac_key));
+
+            OPENSSL_cleanse(hmac_key, sizeof(hmac_key));
+
+            return 1;
+        }
+    case EVP_CTRL_AEAD_TLS1_AAD:
+        {
+            unsigned char *p = ptr;
+            unsigned int len = p[arg - 2] << 8 | p[arg - 1];
+
+            if (ctx->encrypt) {
+                key->payload_length = len;
+                if ((key->aux.tls_ver =
+                     p[arg - 4] << 8 | p[arg - 3]) >= TLS1_1_VERSION) {
+                    len -= AES_BLOCK_SIZE;
+                    p[arg - 2] = len >> 8;
+                    p[arg - 1] = len;
+                }
+                key->md = key->head;
+                SHA256_Update(&key->md, p, arg);
+
+                return (int)(((len + SHA256_DIGEST_LENGTH +
+                               AES_BLOCK_SIZE) & -AES_BLOCK_SIZE)
+                             - len);
+            } else {
+                if (arg > 13)
+                    arg = 13;
+                memcpy(key->aux.tls_aad, ptr, arg);
+                key->payload_length = arg;
+
+                return SHA256_DIGEST_LENGTH;
+            }
+        }
+#  if !defined(OPENSSL_NO_MULTIBLOCK) && EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK
+    case EVP_CTRL_TLS1_1_MULTIBLOCK_MAX_BUFSIZE:
+        return (int)(5 + 16 + ((arg + 32 + 16) & -16));
+    case EVP_CTRL_TLS1_1_MULTIBLOCK_AAD:
+        {
+            EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
+                (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr;
+            unsigned int n4x = 1, x4;
+            unsigned int frag, last, packlen, inp_len;
+
+            if (arg < (int)sizeof(EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM))
+                return -1;
+
+            inp_len = param->inp[11] << 8 | param->inp[12];
+
+            if (ctx->encrypt) {
+                if ((param->inp[9] << 8 | param->inp[10]) < TLS1_1_VERSION)
+                    return -1;
+
+                if (inp_len) {
+                    if (inp_len < 4096)
+                        return 0; /* too short */
+
+                    if (inp_len >= 8192 && OPENSSL_ia32cap_P[2] & (1 << 5))
+                        n4x = 2; /* AVX2 */
+                } else if ((n4x = param->interleave / 4) && n4x <= 2)
+                    inp_len = param->len;
+                else
+                    return -1;
+
+                key->md = key->head;
+                SHA256_Update(&key->md, param->inp, 13);
+
+                x4 = 4 * n4x;
+                n4x += 1;
+
+                frag = inp_len >> n4x;
+                last = inp_len + frag - (frag << n4x);
+                if (last > frag && ((last + 13 + 9) % 64 < (x4 - 1))) {
+                    frag++;
+                    last -= x4 - 1;
+                }
+
+                packlen = 5 + 16 + ((frag + 32 + 16) & -16);
+                packlen = (packlen << n4x) - packlen;
+                packlen += 5 + 16 + ((last + 32 + 16) & -16);
+
+                param->interleave = x4;
+
+                return (int)packlen;
+            } else
+                return -1;      /* not yet */
+        }
+    case EVP_CTRL_TLS1_1_MULTIBLOCK_ENCRYPT:
+        {
+            EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *param =
+                (EVP_CTRL_TLS1_1_MULTIBLOCK_PARAM *) ptr;
+
+            return (int)tls1_1_multi_block_encrypt(key, param->out,
+                                                   param->inp, param->len,
+                                                   param->interleave / 4);
+        }
+    case EVP_CTRL_TLS1_1_MULTIBLOCK_DECRYPT:
+#  endif
+    default:
+        return -1;
+    }
+}
+
+static EVP_CIPHER aesni_128_cbc_hmac_sha256_cipher = {
+#  ifdef NID_aes_128_cbc_hmac_sha256
+    NID_aes_128_cbc_hmac_sha256,
+#  else
+    NID_undef,
+#  endif
+    16, 16, 16,
+    EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
+        EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
+    aesni_cbc_hmac_sha256_init_key,
+    aesni_cbc_hmac_sha256_cipher,
+    NULL,
+    sizeof(EVP_AES_HMAC_SHA256),
+    EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv,
+    EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv,
+    aesni_cbc_hmac_sha256_ctrl,
+    NULL
+};
+
+static EVP_CIPHER aesni_256_cbc_hmac_sha256_cipher = {
+#  ifdef NID_aes_256_cbc_hmac_sha256
+    NID_aes_256_cbc_hmac_sha256,
+#  else
+    NID_undef,
+#  endif
+    16, 32, 16,
+    EVP_CIPH_CBC_MODE | EVP_CIPH_FLAG_DEFAULT_ASN1 |
+        EVP_CIPH_FLAG_AEAD_CIPHER | EVP_CIPH_FLAG_TLS1_1_MULTIBLOCK,
+    aesni_cbc_hmac_sha256_init_key,
+    aesni_cbc_hmac_sha256_cipher,
+    NULL,
+    sizeof(EVP_AES_HMAC_SHA256),
+    EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_set_asn1_iv,
+    EVP_CIPH_FLAG_DEFAULT_ASN1 ? NULL : EVP_CIPHER_get_asn1_iv,
+    aesni_cbc_hmac_sha256_ctrl,
+    NULL
+};
+
+const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void)
+{
+    return ((OPENSSL_ia32cap_P[1] & AESNI_CAPABLE) &&
+            aesni_cbc_sha256_enc(NULL, NULL, 0, NULL, NULL, NULL, NULL) ?
+            &aesni_128_cbc_hmac_sha256_cipher : NULL);
+}
+
+const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void)
+{
+    return ((OPENSSL_ia32cap_P[1] & AESNI_CAPABLE) &&
+            aesni_cbc_sha256_enc(NULL, NULL, 0, NULL, NULL, NULL, NULL) ?
+            &aesni_256_cbc_hmac_sha256_cipher : NULL);
+}
+# else
+const EVP_CIPHER *EVP_aes_128_cbc_hmac_sha256(void)
+{
+    return NULL;
+}
+
+const EVP_CIPHER *EVP_aes_256_cbc_hmac_sha256(void)
+{
+    return NULL;
+}
+# endif
+#endif