case NID_rc2_ofb64:
case NID_chacha20:
case NID_chacha20_poly1305:
+ case NID_rc4_hmac_md5:
break;
default:
goto legacy;
#ifndef OPENSSL_NO_RC4
{ "RC4", "default=yes", rc4128_functions },
{ "RC4-40", "default=yes", rc440_functions },
+# ifndef OPENSSL_NO_MD5
+ { "RC4-HMAC-MD5", "default=yes", rc4_hmac_md5_functions },
+# endif /* OPENSSL_NO_MD5 */
#endif /* OPENSSL_NO_RC4 */
#ifndef OPENSSL_NO_RC5
{ "RC5-ECB", "default=yes", rc5128ecb_functions },
IF[{- !$disabled{rc4} -}]
SOURCE[$RC4_GOAL]=\
cipher_rc4.c cipher_rc4_hw.c
+ IF[{- !$disabled{md5} -}]
+ SOURCE[$RC4_GOAL]=\
+ cipher_rc4_hmac_md5.c cipher_rc4_hmac_md5_hw.c
+ ENDIF
ENDIF
IF[{- !$disabled{rc5} -}]
--- /dev/null
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* Dispatch functions for RC4_HMAC_MD5 cipher */
+
+#include "cipher_rc4_hmac_md5.h"
+#include "prov/implementations.h"
+#include "prov/providercommonerr.h"
+
+/* TODO(3.0) Figure out what flags are required */
+#define RC4_HMAC_MD5_FLAGS (EVP_CIPH_STREAM_CIPHER | EVP_CIPH_VARIABLE_LENGTH \
+ | EVP_CIPH_FLAG_AEAD_CIPHER)
+
+#define RC4_HMAC_MD5_KEY_BITS (16 * 8)
+#define RC4_HMAC_MD5_BLOCK_BITS (1 * 8)
+#define RC4_HMAC_MD5_IV_BITS 0
+#define RC4_HMAC_MD5_MODE 0
+
+#define GET_HW(ctx) ((PROV_CIPHER_HW_RC4_HMAC_MD5 *)ctx->base.hw)
+
+static OSSL_OP_cipher_newctx_fn rc4_hmac_md5_newctx;
+static OSSL_OP_cipher_freectx_fn rc4_hmac_md5_freectx;
+static OSSL_OP_cipher_get_ctx_params_fn rc4_hmac_md5_get_ctx_params;
+static OSSL_OP_cipher_gettable_ctx_params_fn rc4_hmac_md5_gettable_ctx_params;
+static OSSL_OP_cipher_set_ctx_params_fn rc4_hmac_md5_set_ctx_params;
+static OSSL_OP_cipher_settable_ctx_params_fn rc4_hmac_md5_settable_ctx_params;
+static OSSL_OP_cipher_get_params_fn rc4_hmac_md5_get_params;
+#define rc4_hmac_md5_gettable_params cipher_generic_gettable_params
+#define rc4_hmac_md5_einit cipher_generic_einit
+#define rc4_hmac_md5_dinit cipher_generic_dinit
+#define rc4_hmac_md5_update cipher_generic_stream_update
+#define rc4_hmac_md5_final cipher_generic_stream_final
+#define rc4_hmac_md5_cipher cipher_generic_cipher
+
+static void *rc4_hmac_md5_newctx(void *provctx)
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = OPENSSL_zalloc(sizeof(*ctx));
+
+ if (ctx != NULL)
+ cipher_generic_initkey(ctx, RC4_HMAC_MD5_KEY_BITS,
+ RC4_HMAC_MD5_BLOCK_BITS,
+ RC4_HMAC_MD5_IV_BITS,
+ RC4_HMAC_MD5_MODE, RC4_HMAC_MD5_FLAGS,
+ PROV_CIPHER_HW_rc4_hmac_md5(RC4_HMAC_MD5_KEY_BITS),
+ NULL);
+ return ctx;
+}
+
+static void rc4_hmac_md5_freectx(void *vctx)
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)vctx;
+
+ OPENSSL_clear_free(ctx, sizeof(*ctx));
+}
+
+static const OSSL_PARAM rc4_hmac_md5_known_gettable_ctx_params[] = {
+ OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
+ OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
+ OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD, NULL),
+ OSSL_PARAM_END
+};
+const OSSL_PARAM *rc4_hmac_md5_gettable_ctx_params(void)
+{
+ return rc4_hmac_md5_known_gettable_ctx_params;
+}
+
+static int rc4_hmac_md5_get_ctx_params(void *vctx, OSSL_PARAM params[])
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)vctx;
+ OSSL_PARAM *p;
+
+ p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_KEYLEN);
+ if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->base.keylen)) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
+ return 0;
+ }
+
+ p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_IVLEN);
+ if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->base.ivlen)) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
+ return 0;
+ }
+ p = OSSL_PARAM_locate(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD_PAD);
+ if (p != NULL && !OSSL_PARAM_set_size_t(p, ctx->tls_aad_pad_sz)) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_SET_PARAMETER);
+ return 0;
+ }
+ return 1;
+}
+
+static const OSSL_PARAM rc4_hmac_md5_known_settable_ctx_params[] = {
+ OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_KEYLEN, NULL),
+ OSSL_PARAM_size_t(OSSL_CIPHER_PARAM_IVLEN, NULL),
+ OSSL_PARAM_octet_string(OSSL_CIPHER_PARAM_AEAD_TLS1_AAD, NULL, 0),
+ OSSL_PARAM_END
+};
+const OSSL_PARAM *rc4_hmac_md5_settable_ctx_params(void)
+{
+ return rc4_hmac_md5_known_settable_ctx_params;
+}
+
+static int rc4_hmac_md5_set_ctx_params(void *vctx, const OSSL_PARAM params[])
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)vctx;
+ const OSSL_PARAM *p;
+ size_t sz;
+
+ p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_KEYLEN);
+ if (p != NULL) {
+ if (!OSSL_PARAM_get_size_t(p, &sz)) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
+ return 0;
+ }
+ if (ctx->base.keylen != sz) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_KEY_LENGTH);
+ return 0;
+ }
+ }
+
+ p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_IVLEN);
+ if (p != NULL) {
+ if (!OSSL_PARAM_get_size_t(p, &sz)) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
+ return 0;
+ }
+ if (ctx->base.ivlen != sz) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_IV_LENGTH);
+ return 0;
+ }
+ }
+
+ p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD);
+ if (p != NULL) {
+ if (p->data_type != OSSL_PARAM_OCTET_STRING) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
+ return 0;
+ }
+ sz = GET_HW(ctx)->tls_init(&ctx->base, p->data, p->data_size);
+ if (sz == 0) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_INVALID_DATA);
+ return 0;
+ }
+ ctx->tls_aad_pad_sz = sz;
+ }
+ p = OSSL_PARAM_locate_const(params, OSSL_CIPHER_PARAM_AEAD_TLS1_AAD);
+ if (p != NULL) {
+ if (p->data_type != OSSL_PARAM_OCTET_STRING) {
+ ERR_raise(ERR_LIB_PROV, PROV_R_FAILED_TO_GET_PARAMETER);
+ return 0;
+ }
+ GET_HW(ctx)->init_mackey(&ctx->base, p->data, p->data_size);
+ }
+ return 1;
+}
+
+static int rc4_hmac_md5_get_params(OSSL_PARAM params[])
+{
+ return cipher_generic_get_params(params, RC4_HMAC_MD5_MODE,
+ RC4_HMAC_MD5_FLAGS,
+ RC4_HMAC_MD5_KEY_BITS,
+ RC4_HMAC_MD5_BLOCK_BITS,
+ RC4_HMAC_MD5_IV_BITS);
+}
+
+const OSSL_DISPATCH rc4_hmac_md5_functions[] = {
+ { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))rc4_hmac_md5_newctx },
+ { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))rc4_hmac_md5_freectx },
+ { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))rc4_hmac_md5_einit },
+ { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))rc4_hmac_md5_dinit },
+ { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))rc4_hmac_md5_update },
+ { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))rc4_hmac_md5_final },
+ { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))rc4_hmac_md5_cipher },
+ { OSSL_FUNC_CIPHER_GET_PARAMS, (void (*)(void))rc4_hmac_md5_get_params },
+ { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,
+ (void (*)(void))rc4_hmac_md5_gettable_params },
+ { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,
+ (void (*)(void))rc4_hmac_md5_get_ctx_params },
+ { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,
+ (void (*)(void))rc4_hmac_md5_gettable_ctx_params },
+ { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,
+ (void (*)(void))rc4_hmac_md5_set_ctx_params },
+ { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,
+ (void (*)(void))rc4_hmac_md5_settable_ctx_params },
+ { 0, NULL }
+};
--- /dev/null
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <openssl/rc4.h>
+#include <openssl/md5.h>
+#include "prov/ciphercommon.h"
+
+typedef struct prov_rc4_hmac_md5_ctx_st {
+ PROV_CIPHER_CTX base; /* Must be first */
+ union {
+ OSSL_UNION_ALIGN;
+ RC4_KEY ks;
+ } ks;
+ MD5_CTX head, tail, md;
+ size_t payload_length;
+ size_t tls_aad_pad_sz;
+} PROV_RC4_HMAC_MD5_CTX;
+
+typedef struct prov_cipher_hw_rc4_hmac_md5_st {
+ PROV_CIPHER_HW base; /* Must be first */
+ int (*tls_init)(PROV_CIPHER_CTX *ctx, unsigned char *aad, size_t aad_len);
+ void (*init_mackey)(PROV_CIPHER_CTX *ctx, const unsigned char *key,
+ size_t len);
+
+} PROV_CIPHER_HW_RC4_HMAC_MD5;
+
+const PROV_CIPHER_HW *PROV_CIPHER_HW_rc4_hmac_md5(size_t keybits);
--- /dev/null
+/*
+ * Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/* RC4_HMAC_MD5 cipher implementation */
+
+#include "cipher_rc4_hmac_md5.h"
+
+#define NO_PAYLOAD_LENGTH ((size_t)-1)
+
+#if defined(RC4_ASM) \
+ && defined(MD5_ASM) \
+ && (defined(__x86_64) \
+ || defined(__x86_64__) \
+ || defined(_M_AMD64) \
+ || defined(_M_X64))
+# define STITCHED_CALL
+# define MOD 32 /* 32 is $MOD from rc4_md5-x86_64.pl */
+#else
+# define rc4_off 0
+# define md5_off 0
+#endif
+
+static int cipher_hw_rc4_hmac_md5_initkey(PROV_CIPHER_CTX *bctx,
+ const uint8_t *key, size_t keylen)
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)bctx;
+
+ RC4_set_key(&ctx->ks.ks, keylen, key);
+ MD5_Init(&ctx->head); /* handy when benchmarking */
+ ctx->tail = ctx->head;
+ ctx->md = ctx->head;
+ ctx->payload_length = NO_PAYLOAD_LENGTH;
+ return 1;
+}
+
+static int cipher_hw_rc4_hmac_md5_cipher(PROV_CIPHER_CTX *bctx,
+ unsigned char *out,
+ const unsigned char *in, size_t len)
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)bctx;
+ RC4_KEY *ks = &ctx->ks.ks;
+
+#if defined(STITCHED_CALL)
+ size_t rc4_off = MOD - 1 - (ks->x & (MOD - 1));
+ size_t md5_off = MD5_CBLOCK - ctx->md.num, blocks;
+ unsigned int l;
+#endif
+ size_t plen = ctx->payload_length;
+
+ if (plen != NO_PAYLOAD_LENGTH && len != (plen + MD5_DIGEST_LENGTH))
+ return 0;
+
+ if (ctx->base.enc) {
+ if (plen == NO_PAYLOAD_LENGTH)
+ plen = len;
+#if defined(STITCHED_CALL)
+ /* cipher has to "fall behind" */
+ if (rc4_off > md5_off)
+ md5_off += MD5_CBLOCK;
+
+ if (plen > md5_off
+ && (blocks = (plen - md5_off) / MD5_CBLOCK)
+ && (OPENSSL_ia32cap_P[0] & (1 << 20)) == 0) {
+ MD5_Update(&ctx->md, in, md5_off);
+ RC4(ks, rc4_off, in, out);
+
+ rc4_md5_enc(ks, in + rc4_off, out + rc4_off,
+ &ctx->md, in + md5_off, blocks);
+ blocks *= MD5_CBLOCK;
+ rc4_off += blocks;
+ md5_off += blocks;
+ ctx->md.Nh += blocks >> 29;
+ ctx->md.Nl += blocks <<= 3;
+ if (ctx->md.Nl < (unsigned int)blocks)
+ ctx->md.Nh++;
+ } else {
+ rc4_off = 0;
+ md5_off = 0;
+ }
+#endif
+ MD5_Update(&ctx->md, in + md5_off, plen - md5_off);
+
+ if (plen != len) { /* "TLS" mode of operation */
+ if (in != out)
+ memcpy(out + rc4_off, in + rc4_off, plen - rc4_off);
+
+ /* calculate HMAC and append it to payload */
+ MD5_Final(out + plen, &ctx->md);
+ ctx->md = ctx->tail;
+ MD5_Update(&ctx->md, out + plen, MD5_DIGEST_LENGTH);
+ MD5_Final(out + plen, &ctx->md);
+ /* encrypt HMAC at once */
+ RC4(ks, len - rc4_off, out + rc4_off, out + rc4_off);
+ } else {
+ RC4(ks, len - rc4_off, in + rc4_off, out + rc4_off);
+ }
+ } else {
+ unsigned char mac[MD5_DIGEST_LENGTH];
+
+#if defined(STITCHED_CALL)
+ /* digest has to "fall behind" */
+ if (md5_off > rc4_off)
+ rc4_off += 2 * MD5_CBLOCK;
+ else
+ rc4_off += MD5_CBLOCK;
+
+ if (len > rc4_off
+ && (blocks = (len - rc4_off) / MD5_CBLOCK)
+ && (OPENSSL_ia32cap_P[0] & (1 << 20)) == 0) {
+ RC4(ks, rc4_off, in, out);
+ MD5_Update(&ctx->md, out, md5_off);
+
+ rc4_md5_enc(ks, in + rc4_off, out + rc4_off,
+ &ctx->md, out + md5_off, blocks);
+ blocks *= MD5_CBLOCK;
+ rc4_off += blocks;
+ md5_off += blocks;
+ l = (ctx->md.Nl + (blocks << 3)) & 0xffffffffU;
+ if (l < ctx->md.Nl)
+ ctx->md.Nh++;
+ ctx->md.Nl = l;
+ ctx->md.Nh += blocks >> 29;
+ } else {
+ md5_off = 0;
+ rc4_off = 0;
+ }
+#endif
+ /* decrypt HMAC at once */
+ RC4(ks, len - rc4_off, in + rc4_off, out + rc4_off);
+ if (plen != NO_PAYLOAD_LENGTH) {
+ /* "TLS" mode of operation */
+ MD5_Update(&ctx->md, out + md5_off, plen - md5_off);
+
+ /* calculate HMAC and verify it */
+ MD5_Final(mac, &ctx->md);
+ ctx->md = ctx->tail;
+ MD5_Update(&ctx->md, mac, MD5_DIGEST_LENGTH);
+ MD5_Final(mac, &ctx->md);
+
+ if (CRYPTO_memcmp(out + plen, mac, MD5_DIGEST_LENGTH))
+ return 0;
+ } else {
+ MD5_Update(&ctx->md, out + md5_off, len - md5_off);
+ }
+ }
+
+ ctx->payload_length = NO_PAYLOAD_LENGTH;
+
+ return 1;
+}
+
+static int cipher_hw_rc4_hmac_md5_tls_init(PROV_CIPHER_CTX *bctx,
+ unsigned char *aad, size_t aad_len)
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)bctx;
+ unsigned int len;
+
+ if (aad_len != EVP_AEAD_TLS1_AAD_LEN)
+ return 0;
+
+ len = aad[aad_len - 2] << 8 | aad[aad_len - 1];
+
+ if (!bctx->enc) {
+ if (len < MD5_DIGEST_LENGTH)
+ return 0;
+ len -= MD5_DIGEST_LENGTH;
+ aad[aad_len - 2] = len >> 8;
+ aad[aad_len - 1] = len;
+ }
+ ctx->payload_length = len;
+ ctx->md = ctx->head;
+ MD5_Update(&ctx->md, aad, aad_len);
+
+ return MD5_DIGEST_LENGTH;
+}
+
+static void cipher_hw_rc4_hmac_md5_init_mackey(PROV_CIPHER_CTX *bctx,
+ const unsigned char *key,
+ size_t len)
+{
+ PROV_RC4_HMAC_MD5_CTX *ctx = (PROV_RC4_HMAC_MD5_CTX *)bctx;
+ unsigned int i;
+ unsigned char hmac_key[64];
+
+ memset(hmac_key, 0, sizeof(hmac_key));
+
+ if (len > (int)sizeof(hmac_key)) {
+ MD5_Init(&ctx->head);
+ MD5_Update(&ctx->head, key, len);
+ MD5_Final(hmac_key, &ctx->head);
+ } else {
+ memcpy(hmac_key, key, len);
+ }
+
+ for (i = 0; i < sizeof(hmac_key); i++)
+ hmac_key[i] ^= 0x36; /* ipad */
+ MD5_Init(&ctx->head);
+ MD5_Update(&ctx->head, hmac_key, sizeof(hmac_key));
+
+ for (i = 0; i < sizeof(hmac_key); i++)
+ hmac_key[i] ^= 0x36 ^ 0x5c; /* opad */
+ MD5_Init(&ctx->tail);
+ MD5_Update(&ctx->tail, hmac_key, sizeof(hmac_key));
+
+ OPENSSL_cleanse(hmac_key, sizeof(hmac_key));
+}
+
+static const PROV_CIPHER_HW_RC4_HMAC_MD5 rc4_hmac_md5_hw = {
+ {
+ cipher_hw_rc4_hmac_md5_initkey,
+ cipher_hw_rc4_hmac_md5_cipher
+ },
+ cipher_hw_rc4_hmac_md5_tls_init,
+ cipher_hw_rc4_hmac_md5_init_mackey
+};
+const PROV_CIPHER_HW *PROV_CIPHER_HW_rc4_hmac_md5(size_t keybits)
+{
+ return (PROV_CIPHER_HW *)&rc4_hmac_md5_hw;
+}
#ifndef OPENSSL_NO_RC4
extern const OSSL_DISPATCH rc440_functions[];
extern const OSSL_DISPATCH rc4128_functions[];
+# ifndef OPENSSL_NO_MD5
+extern const OSSL_DISPATCH rc4_hmac_md5_functions[];
+# endif /* OPENSSL_NO_MD5 */
#endif /* OPENSSL_NO_RC4 */
#ifndef OPENSSL_NO_CHACHA
extern const OSSL_DISPATCH chacha20_functions[];
projects / oweals / openssl.git / commitdiff