X-Git-Url: https://git.openssl.org/?a=blobdiff_plain;f=crypto%2Fevp%2Fevp_lib.c;h=a1636284c05de8d066f875898774ca03ed4b4c84;hb=317be63875e59efa34be0075eaff3c033ef6969f;hp=6b677fdf6f266615a9afc9cb336797a85c8d364f;hpb=ec577822f95a8bca0023c5c77cef1a4916822d4a;p=openssl.git diff --git a/crypto/evp/evp_lib.c b/crypto/evp/evp_lib.c index 6b677fdf6f..a1636284c0 100644 --- a/crypto/evp/evp_lib.c +++ b/crypto/evp/evp_lib.c @@ -1,25 +1,24 @@ -/* crypto/evp/evp_lib.c */ /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) * All rights reserved. * * This package is an SSL implementation written * by Eric Young (eay@cryptsoft.com). * The implementation was written so as to conform with Netscapes SSL. - * + * * This library is free for commercial and non-commercial use as long as * the following conditions are aheared to. The following conditions * apply to all code found in this distribution, be it the RC4, RSA, * lhash, DES, etc., code; not just the SSL code. The SSL documentation * included with this distribution is covered by the same copyright terms * except that the holder is Tim Hudson (tjh@cryptsoft.com). - * + * * Copyright remains Eric Young's, and as such any Copyright notices in * the code are not to be removed. * If this package is used in a product, Eric Young should be given attribution * as the author of the parts of the library used. * This can be in the form of a textual message at program startup or * in documentation (online or textual) provided with the package. - * + * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: @@ -34,10 +33,10 @@ * Eric Young (eay@cryptsoft.com)" * The word 'cryptographic' can be left out if the rouines from the library * being used are not cryptographic related :-). - * 4. If you include any Windows specific code (or a derivative thereof) from + * 4. If you include any Windows specific code (or a derivative thereof) from * the apps directory (application code) you must include an acknowledgement: * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" - * + * * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE @@ -49,7 +48,7 @@ * 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. - * + * * The licence and distribution terms for any publically available version or * derivative of this code cannot be changed. i.e. this code cannot simply be * copied and put under another distribution licence @@ -57,56 +56,480 @@ */ #include -#include "cryptlib.h" +#include "internal/cryptlib.h" #include #include +#include "internal/evp_int.h" +#include "evp_locl.h" int EVP_CIPHER_param_to_asn1(EVP_CIPHER_CTX *c, ASN1_TYPE *type) - { - int ret; +{ + int ret; - if (c->cipher->set_asn1_parameters != NULL) - ret=c->cipher->set_asn1_parameters(c,type); - else - ret=1; - return(ret); - } + if (c->cipher->set_asn1_parameters != NULL) + ret = c->cipher->set_asn1_parameters(c, type); + else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) { + switch (EVP_CIPHER_CTX_mode(c)) { + case EVP_CIPH_WRAP_MODE: + if (EVP_CIPHER_CTX_nid(c) == NID_id_smime_alg_CMS3DESwrap) + ASN1_TYPE_set(type, V_ASN1_NULL, NULL); + ret = 1; + break; + + case EVP_CIPH_GCM_MODE: + case EVP_CIPH_CCM_MODE: + case EVP_CIPH_XTS_MODE: + case EVP_CIPH_OCB_MODE: + ret = -1; + break; + + default: + ret = EVP_CIPHER_set_asn1_iv(c, type); + } + } else + ret = -1; + return (ret); +} int EVP_CIPHER_asn1_to_param(EVP_CIPHER_CTX *c, ASN1_TYPE *type) - { - int ret; +{ + int ret; + + if (c->cipher->get_asn1_parameters != NULL) + ret = c->cipher->get_asn1_parameters(c, type); + else if (c->cipher->flags & EVP_CIPH_FLAG_DEFAULT_ASN1) { + switch (EVP_CIPHER_CTX_mode(c)) { + + case EVP_CIPH_WRAP_MODE: + ret = 1; + break; - if (c->cipher->get_asn1_parameters != NULL) - ret=c->cipher->get_asn1_parameters(c,type); - else - ret=1; - return(ret); - } + case EVP_CIPH_GCM_MODE: + case EVP_CIPH_CCM_MODE: + case EVP_CIPH_XTS_MODE: + case EVP_CIPH_OCB_MODE: + ret = -1; + break; + + default: + ret = EVP_CIPHER_get_asn1_iv(c, type); + break; + } + } else + ret = -1; + return (ret); +} int EVP_CIPHER_get_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) - { - int i=0,l; - - if (type != NULL) - { - l=EVP_CIPHER_CTX_iv_length(c); - i=ASN1_TYPE_get_octetstring(type,c->oiv,l); - if (i != l) - return(-1); - else if (i > 0) - memcpy(c->iv,c->oiv,l); - } - return(i); - } +{ + int i = 0; + unsigned int l; + + if (type != NULL) { + l = EVP_CIPHER_CTX_iv_length(c); + OPENSSL_assert(l <= sizeof(c->iv)); + i = ASN1_TYPE_get_octetstring(type, c->oiv, l); + if (i != (int)l) + return (-1); + else if (i > 0) + memcpy(c->iv, c->oiv, l); + } + return (i); +} int EVP_CIPHER_set_asn1_iv(EVP_CIPHER_CTX *c, ASN1_TYPE *type) - { - int i=0,j; - - if (type != NULL) - { - j=EVP_CIPHER_CTX_iv_length(c); - i=ASN1_TYPE_set_octetstring(type,c->oiv,j); - } - return(i); - } +{ + int i = 0; + unsigned int j; + + if (type != NULL) { + j = EVP_CIPHER_CTX_iv_length(c); + OPENSSL_assert(j <= sizeof(c->iv)); + i = ASN1_TYPE_set_octetstring(type, c->oiv, j); + } + return (i); +} + +/* Convert the various cipher NIDs and dummies to a proper OID NID */ +int EVP_CIPHER_type(const EVP_CIPHER *ctx) +{ + int nid; + ASN1_OBJECT *otmp; + nid = EVP_CIPHER_nid(ctx); + + switch (nid) { + + case NID_rc2_cbc: + case NID_rc2_64_cbc: + case NID_rc2_40_cbc: + + return NID_rc2_cbc; + + case NID_rc4: + case NID_rc4_40: + + return NID_rc4; + + case NID_aes_128_cfb128: + case NID_aes_128_cfb8: + case NID_aes_128_cfb1: + + return NID_aes_128_cfb128; + + case NID_aes_192_cfb128: + case NID_aes_192_cfb8: + case NID_aes_192_cfb1: + + return NID_aes_192_cfb128; + + case NID_aes_256_cfb128: + case NID_aes_256_cfb8: + case NID_aes_256_cfb1: + + return NID_aes_256_cfb128; + + case NID_des_cfb64: + case NID_des_cfb8: + case NID_des_cfb1: + + return NID_des_cfb64; + + case NID_des_ede3_cfb64: + case NID_des_ede3_cfb8: + case NID_des_ede3_cfb1: + + return NID_des_cfb64; + + default: + /* Check it has an OID and it is valid */ + otmp = OBJ_nid2obj(nid); + if (OBJ_get0_data(otmp) == NULL) + nid = NID_undef; + ASN1_OBJECT_free(otmp); + return nid; + } +} + +int EVP_CIPHER_block_size(const EVP_CIPHER *e) +{ + return e->block_size; +} + +int EVP_CIPHER_CTX_block_size(const EVP_CIPHER_CTX *ctx) +{ + return ctx->cipher->block_size; +} + +int EVP_CIPHER_impl_ctx_size(const EVP_CIPHER *e) +{ + return e->ctx_size; +} + +int EVP_Cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, + const unsigned char *in, unsigned int inl) +{ + return ctx->cipher->do_cipher(ctx, out, in, inl); +} + +const EVP_CIPHER *EVP_CIPHER_CTX_cipher(const EVP_CIPHER_CTX *ctx) +{ + return ctx->cipher; +} + +int EVP_CIPHER_CTX_encrypting(const EVP_CIPHER_CTX *ctx) +{ + return ctx->encrypt; +} + +unsigned long EVP_CIPHER_flags(const EVP_CIPHER *cipher) +{ + return cipher->flags; +} + +void *EVP_CIPHER_CTX_get_app_data(const EVP_CIPHER_CTX *ctx) +{ + return ctx->app_data; +} + +void EVP_CIPHER_CTX_set_app_data(EVP_CIPHER_CTX *ctx, void *data) +{ + ctx->app_data = data; +} + +void *EVP_CIPHER_CTX_cipher_data(const EVP_CIPHER_CTX *ctx) +{ + return ctx->cipher_data; +} + +int EVP_CIPHER_iv_length(const EVP_CIPHER *cipher) +{ + return cipher->iv_len; +} + +int EVP_CIPHER_CTX_iv_length(const EVP_CIPHER_CTX *ctx) +{ + return ctx->cipher->iv_len; +} + +const unsigned char *EVP_CIPHER_CTX_original_iv(const EVP_CIPHER_CTX *ctx) +{ + return ctx->oiv; +} + +const unsigned char *EVP_CIPHER_CTX_iv(const EVP_CIPHER_CTX *ctx) +{ + return ctx->iv; +} + +unsigned char *EVP_CIPHER_CTX_iv_noconst(EVP_CIPHER_CTX *ctx) +{ + return ctx->iv; +} + +unsigned char *EVP_CIPHER_CTX_buf_noconst(EVP_CIPHER_CTX *ctx) +{ + return ctx->buf; +} + +int EVP_CIPHER_CTX_num(const EVP_CIPHER_CTX *ctx) +{ + return ctx->num; +} + +void EVP_CIPHER_CTX_set_num(EVP_CIPHER_CTX *ctx, int num) +{ + ctx->num = num; +} + +int EVP_CIPHER_key_length(const EVP_CIPHER *cipher) +{ + return cipher->key_len; +} + +int EVP_CIPHER_CTX_key_length(const EVP_CIPHER_CTX *ctx) +{ + return ctx->key_len; +} + +int EVP_CIPHER_nid(const EVP_CIPHER *cipher) +{ + return cipher->nid; +} + +int EVP_CIPHER_CTX_nid(const EVP_CIPHER_CTX *ctx) +{ + return ctx->cipher->nid; +} + +int EVP_MD_block_size(const EVP_MD *md) +{ + return md->block_size; +} + +int EVP_MD_type(const EVP_MD *md) +{ + return md->type; +} + +int EVP_MD_pkey_type(const EVP_MD *md) +{ + return md->pkey_type; +} + +int EVP_MD_size(const EVP_MD *md) +{ + if (!md) { + EVPerr(EVP_F_EVP_MD_SIZE, EVP_R_MESSAGE_DIGEST_IS_NULL); + return -1; + } + return md->md_size; +} + +unsigned long EVP_MD_flags(const EVP_MD *md) +{ + return md->flags; +} + +EVP_MD *EVP_MD_meth_new(int md_type, int pkey_type) +{ + EVP_MD *md = OPENSSL_zalloc(sizeof(*md)); + + if (md != NULL) { + md->type = md_type; + md->pkey_type = pkey_type; + } + return md; +} +EVP_MD *EVP_MD_meth_dup(const EVP_MD *md) +{ + EVP_MD *to = EVP_MD_meth_new(md->type, md->pkey_type); + + if (to != NULL) + memcpy(to, md, sizeof(*to)); + return to; +} +void EVP_MD_meth_free(EVP_MD *md) +{ + OPENSSL_free(md); +} +int EVP_MD_meth_set_input_blocksize(EVP_MD *md, int blocksize) +{ + md->block_size = blocksize; + return 1; +} +int EVP_MD_meth_set_result_size(EVP_MD *md, int resultsize) +{ + md->md_size = resultsize; + return 1; +} +int EVP_MD_meth_set_app_datasize(EVP_MD *md, int datasize) +{ + md->ctx_size = datasize; + return 1; +} +int EVP_MD_meth_set_flags(EVP_MD *md, unsigned long flags) +{ + md->flags = flags; + return 1; +} +int EVP_MD_meth_set_init(EVP_MD *md, int (*init)(EVP_MD_CTX *ctx)) +{ + md->init = init; + return 1; +} +int EVP_MD_meth_set_update(EVP_MD *md, int (*update)(EVP_MD_CTX *ctx, + const void *data, + size_t count)) +{ + md->update = update; + return 1; +} +int EVP_MD_meth_set_final(EVP_MD *md, int (*final)(EVP_MD_CTX *ctx, + unsigned char *md)) +{ + md->final = final; + return 1; +} +int EVP_MD_meth_set_copy(EVP_MD *md, int (*copy)(EVP_MD_CTX *to, + const EVP_MD_CTX *from)) +{ + md->copy = copy; + return 1; +} +int EVP_MD_meth_set_cleanup(EVP_MD *md, int (*cleanup)(EVP_MD_CTX *ctx)) +{ + md->cleanup = cleanup; + return 1; +} +int EVP_MD_meth_set_ctrl(EVP_MD *md, int (*ctrl)(EVP_MD_CTX *ctx, int cmd, + int p1, void *p2)) +{ + md->md_ctrl = ctrl; + return 1; +} + +int EVP_MD_meth_get_input_blocksize(const EVP_MD *md) +{ + return md->block_size; +} +int EVP_MD_meth_get_result_size(const EVP_MD *md) +{ + return md->md_size; +} +int EVP_MD_meth_get_app_datasize(const EVP_MD *md) +{ + return md->ctx_size; +} +unsigned long EVP_MD_meth_get_flags(const EVP_MD *md) +{ + return md->block_size; +} +int (*EVP_MD_meth_get_init(const EVP_MD *md))(EVP_MD_CTX *ctx) +{ + return md->init; +} +int (*EVP_MD_meth_get_update(const EVP_MD *md))(EVP_MD_CTX *ctx, + const void *data, + size_t count) +{ + return md->update; +} +int (*EVP_MD_meth_get_final(const EVP_MD *md))(EVP_MD_CTX *ctx, + unsigned char *md) +{ + return md->final; +} +int (*EVP_MD_meth_get_copy(const EVP_MD *md))(EVP_MD_CTX *to, + const EVP_MD_CTX *from) +{ + return md->copy; +} +int (*EVP_MD_meth_get_cleanup(const EVP_MD *md))(EVP_MD_CTX *ctx) +{ + return md->cleanup; +} +int (*EVP_MD_meth_get_ctrl(const EVP_MD *md))(EVP_MD_CTX *ctx, int cmd, + int p1, void *p2) +{ + return md->md_ctrl; +} + +const EVP_MD *EVP_MD_CTX_md(const EVP_MD_CTX *ctx) +{ + if (!ctx) + return NULL; + return ctx->digest; +} + +EVP_PKEY_CTX *EVP_MD_CTX_pkey_ctx(const EVP_MD_CTX *ctx) +{ + return ctx->pctx; +} + +void *EVP_MD_CTX_md_data(const EVP_MD_CTX *ctx) +{ + return ctx->md_data; +} + +int (*EVP_MD_CTX_update_fn(EVP_MD_CTX *ctx))(EVP_MD_CTX *ctx, + const void *data, size_t count) +{ + return ctx->update; +} + +void EVP_MD_CTX_set_update_fn(EVP_MD_CTX *ctx, + int (*update) (EVP_MD_CTX *ctx, + const void *data, size_t count)) +{ + ctx->update = update; +} + +void EVP_MD_CTX_set_flags(EVP_MD_CTX *ctx, int flags) +{ + ctx->flags |= flags; +} + +void EVP_MD_CTX_clear_flags(EVP_MD_CTX *ctx, int flags) +{ + ctx->flags &= ~flags; +} + +int EVP_MD_CTX_test_flags(const EVP_MD_CTX *ctx, int flags) +{ + return (ctx->flags & flags); +} + +void EVP_CIPHER_CTX_set_flags(EVP_CIPHER_CTX *ctx, int flags) +{ + ctx->flags |= flags; +} + +void EVP_CIPHER_CTX_clear_flags(EVP_CIPHER_CTX *ctx, int flags) +{ + ctx->flags &= ~flags; +} + +int EVP_CIPHER_CTX_test_flags(const EVP_CIPHER_CTX *ctx, int flags) +{ + return (ctx->flags & flags); +}