diff options
Diffstat (limited to 'openssl/fips/rsa/fips_rsa_sign.c')
| -rw-r--r-- | openssl/fips/rsa/fips_rsa_sign.c | 554 |
1 files changed, 0 insertions, 554 deletions
diff --git a/openssl/fips/rsa/fips_rsa_sign.c b/openssl/fips/rsa/fips_rsa_sign.c deleted file mode 100644 index 37364621d..000000000 --- a/openssl/fips/rsa/fips_rsa_sign.c +++ /dev/null @@ -1,554 +0,0 @@ -/* fips_rsa_sign.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project 2007. - */ -/* ==================================================================== - * Copyright (c) 2007 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ - -#include <string.h> -#include <openssl/evp.h> -#include <openssl/rsa.h> -#include <openssl/err.h> -#include <openssl/sha.h> - -#ifdef OPENSSL_FIPS - -/* FIPS versions of RSA_sign() and RSA_verify(). - * These will only have to deal with SHA* signatures and by including - * pregenerated encodings all ASN1 dependencies can be avoided - */ - -/* Standard encodings including NULL parameter */ - -static const unsigned char sha1_bin[] = { - 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x05, - 0x00, 0x04, 0x14 -}; - -static const unsigned char sha224_bin[] = { - 0x30, 0x2d, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x04, 0x05, 0x00, 0x04, 0x1c -}; - -static const unsigned char sha256_bin[] = { - 0x30, 0x31, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x01, 0x05, 0x00, 0x04, 0x20 -}; - -static const unsigned char sha384_bin[] = { - 0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30 -}; - -static const unsigned char sha512_bin[] = { - 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40 -}; - -/* Alternate encodings with absent parameters. We don't generate signature - * using this format but do tolerate received signatures of this form. - */ - -static unsigned char sha1_nn_bin[] = { - 0x30, 0x1f, 0x30, 0x07, 0x06, 0x05, 0x2b, 0x0e, 0x03, 0x02, 0x1a, 0x04, - 0x14 -}; - -static unsigned char sha224_nn_bin[] = { - 0x30, 0x2b, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x04, 0x04, 0x1c -}; - -static unsigned char sha256_nn_bin[] = { - 0x30, 0x2f, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x01, 0x04, 0x20 -}; - -static unsigned char sha384_nn_bin[] = { - 0x30, 0x3f, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x02, 0x04, 0x30 -}; - -static unsigned char sha512_nn_bin[] = { - 0x30, 0x4f, 0x30, 0x0b, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, - 0x04, 0x02, 0x03, 0x04, 0x40 -}; - - -static const unsigned char *fips_digestinfo_encoding(int nid, unsigned int *len) - { - switch (nid) - { - - case NID_sha1: - *len = sizeof(sha1_bin); - return sha1_bin; - - case NID_sha224: - *len = sizeof(sha224_bin); - return sha224_bin; - - case NID_sha256: - *len = sizeof(sha256_bin); - return sha256_bin; - - case NID_sha384: - *len = sizeof(sha384_bin); - return sha384_bin; - - case NID_sha512: - *len = sizeof(sha512_bin); - return sha512_bin; - - default: - return NULL; - - } - } - -static const unsigned char *fips_digestinfo_nn_encoding(int nid, unsigned int *len) - { - switch (nid) - { - - case NID_sha1: - *len = sizeof(sha1_nn_bin); - return sha1_nn_bin; - - case NID_sha224: - *len = sizeof(sha224_nn_bin); - return sha224_nn_bin; - - case NID_sha256: - *len = sizeof(sha256_nn_bin); - return sha256_nn_bin; - - case NID_sha384: - *len = sizeof(sha384_nn_bin); - return sha384_nn_bin; - - case NID_sha512: - *len = sizeof(sha512_nn_bin); - return sha512_nn_bin; - - default: - return NULL; - - } - } - -static int fips_rsa_sign(int type, const unsigned char *x, unsigned int y, - unsigned char *sigret, unsigned int *siglen, EVP_MD_SVCTX *sv) - { - int i=0,j,ret=0; - unsigned int dlen; - const unsigned char *der; - unsigned int m_len; - int pad_mode = sv->mctx->flags & EVP_MD_CTX_FLAG_PAD_MASK; - int rsa_pad_mode = 0; - RSA *rsa = sv->key; - /* Largest DigestInfo: 19 (max encoding) + max MD */ - unsigned char tmpdinfo[19 + EVP_MAX_MD_SIZE]; - unsigned char md[EVP_MAX_MD_SIZE + 1]; - - EVP_DigestFinal_ex(sv->mctx, md, &m_len); - - if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_sign) - { - ret = rsa->meth->rsa_sign(type, md, m_len, - sigret, siglen, rsa); - goto done; - } - - if (pad_mode == EVP_MD_CTX_FLAG_PAD_X931) - { - int hash_id; - memcpy(tmpdinfo, md, m_len); - hash_id = RSA_X931_hash_id(M_EVP_MD_CTX_type(sv->mctx)); - if (hash_id == -1) - { - RSAerr(RSA_F_FIPS_RSA_SIGN,RSA_R_UNKNOWN_ALGORITHM_TYPE); - return 0; - } - tmpdinfo[m_len] = (unsigned char)hash_id; - i = m_len + 1; - rsa_pad_mode = RSA_X931_PADDING; - } - else if (pad_mode == EVP_MD_CTX_FLAG_PAD_PKCS1) - { - - der = fips_digestinfo_encoding(type, &dlen); - - if (!der) - { - RSAerr(RSA_F_FIPS_RSA_SIGN,RSA_R_UNKNOWN_ALGORITHM_TYPE); - return 0; - } - memcpy(tmpdinfo, der, dlen); - memcpy(tmpdinfo + dlen, md, m_len); - - i = dlen + m_len; - rsa_pad_mode = RSA_PKCS1_PADDING; - - } - else if (pad_mode == EVP_MD_CTX_FLAG_PAD_PSS) - { - unsigned char *sbuf; - int saltlen; - i = RSA_size(rsa); - sbuf = OPENSSL_malloc(RSA_size(rsa)); - saltlen = M_EVP_MD_CTX_FLAG_PSS_SALT(sv->mctx); - if (saltlen == EVP_MD_CTX_FLAG_PSS_MDLEN) - saltlen = -1; - else if (saltlen == EVP_MD_CTX_FLAG_PSS_MREC) - saltlen = -2; - if (!sbuf) - { - RSAerr(RSA_F_FIPS_RSA_SIGN,ERR_R_MALLOC_FAILURE); - goto psserr; - } - if (!RSA_padding_add_PKCS1_PSS(rsa, sbuf, md, - M_EVP_MD_CTX_md(sv->mctx), saltlen)) - goto psserr; - j=rsa->meth->rsa_priv_enc(i,sbuf,sigret,rsa,RSA_NO_PADDING); - if (j > 0) - { - ret=1; - *siglen=j; - } - psserr: - OPENSSL_cleanse(md,m_len); - OPENSSL_cleanse(sbuf, i); - OPENSSL_free(sbuf); - return ret; - } - - j=RSA_size(rsa); - if (i > (j-RSA_PKCS1_PADDING_SIZE)) - { - RSAerr(RSA_F_FIPS_RSA_SIGN,RSA_R_DIGEST_TOO_BIG_FOR_RSA_KEY); - goto done; - } - /* NB: call underlying method directly to avoid FIPS blocking */ - j=rsa->meth->rsa_priv_enc(i,tmpdinfo,sigret,rsa,rsa_pad_mode); - if (j > 0) - { - ret=1; - *siglen=j; - } - - done: - OPENSSL_cleanse(tmpdinfo,i); - OPENSSL_cleanse(md,m_len); - return ret; - } - -static int fips_rsa_verify(int dtype, - const unsigned char *x, unsigned int y, - unsigned char *sigbuf, unsigned int siglen, EVP_MD_SVCTX *sv) - { - int i,ret=0; - unsigned int dlen, diglen; - int pad_mode = sv->mctx->flags & EVP_MD_CTX_FLAG_PAD_MASK; - int rsa_pad_mode = 0; - unsigned char *s; - const unsigned char *der; - unsigned char dig[EVP_MAX_MD_SIZE]; - RSA *rsa = sv->key; - - if (siglen != (unsigned int)RSA_size(sv->key)) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,RSA_R_WRONG_SIGNATURE_LENGTH); - return(0); - } - - EVP_DigestFinal_ex(sv->mctx, dig, &diglen); - - if((rsa->flags & RSA_FLAG_SIGN_VER) && rsa->meth->rsa_verify) - { - return rsa->meth->rsa_verify(dtype, dig, diglen, - sigbuf, siglen, rsa); - } - - - s= OPENSSL_malloc((unsigned int)siglen); - if (s == NULL) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,ERR_R_MALLOC_FAILURE); - goto err; - } - if (pad_mode == EVP_MD_CTX_FLAG_PAD_X931) - rsa_pad_mode = RSA_X931_PADDING; - else if (pad_mode == EVP_MD_CTX_FLAG_PAD_PKCS1) - rsa_pad_mode = RSA_PKCS1_PADDING; - else if (pad_mode == EVP_MD_CTX_FLAG_PAD_PSS) - rsa_pad_mode = RSA_NO_PADDING; - - /* NB: call underlying method directly to avoid FIPS blocking */ - i=rsa->meth->rsa_pub_dec((int)siglen,sigbuf,s, rsa, rsa_pad_mode); - - if (i <= 0) goto err; - - if (pad_mode == EVP_MD_CTX_FLAG_PAD_X931) - { - int hash_id; - if (i != (int)(diglen + 1)) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,RSA_R_BAD_SIGNATURE); - goto err; - } - hash_id = RSA_X931_hash_id(M_EVP_MD_CTX_type(sv->mctx)); - if (hash_id == -1) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,RSA_R_UNKNOWN_ALGORITHM_TYPE); - goto err; - } - if (s[diglen] != (unsigned char)hash_id) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,RSA_R_BAD_SIGNATURE); - goto err; - } - if (memcmp(s, dig, diglen)) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,RSA_R_BAD_SIGNATURE); - goto err; - } - ret = 1; - } - else if (pad_mode == EVP_MD_CTX_FLAG_PAD_PKCS1) - { - - der = fips_digestinfo_encoding(dtype, &dlen); - - if (!der) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,RSA_R_UNKNOWN_ALGORITHM_TYPE); - return(0); - } - - /* Compare, DigestInfo length, DigestInfo header and finally - * digest value itself - */ - - /* If length mismatch try alternate encoding */ - if (i != (int)(dlen + diglen)) - der = fips_digestinfo_nn_encoding(dtype, &dlen); - - if ((i != (int)(dlen + diglen)) || memcmp(der, s, dlen) - || memcmp(s + dlen, dig, diglen)) - { - RSAerr(RSA_F_FIPS_RSA_VERIFY,RSA_R_BAD_SIGNATURE); - goto err; - } - ret = 1; - - } - else if (pad_mode == EVP_MD_CTX_FLAG_PAD_PSS) - { - int saltlen; - saltlen = M_EVP_MD_CTX_FLAG_PSS_SALT(sv->mctx); - if (saltlen == EVP_MD_CTX_FLAG_PSS_MDLEN) - saltlen = -1; - else if (saltlen == EVP_MD_CTX_FLAG_PSS_MREC) - saltlen = -2; - ret = RSA_verify_PKCS1_PSS(rsa, dig, M_EVP_MD_CTX_md(sv->mctx), - s, saltlen); - if (ret < 0) - ret = 0; - } -err: - if (s != NULL) - { - OPENSSL_cleanse(s, siglen); - OPENSSL_free(s); - } - return(ret); - } - -#define EVP_PKEY_RSA_fips_method \ - (evp_sign_method *)fips_rsa_sign, \ - (evp_verify_method *)fips_rsa_verify, \ - {EVP_PKEY_RSA,EVP_PKEY_RSA2,0,0} - -static int init(EVP_MD_CTX *ctx) - { return SHA1_Init(ctx->md_data); } - -static int update(EVP_MD_CTX *ctx,const void *data,size_t count) - { return SHA1_Update(ctx->md_data,data,count); } - -static int final(EVP_MD_CTX *ctx,unsigned char *md) - { return SHA1_Final(md,ctx->md_data); } - -static const EVP_MD sha1_md= - { - NID_sha1, - NID_sha1WithRSAEncryption, - SHA_DIGEST_LENGTH, - EVP_MD_FLAG_FIPS|EVP_MD_FLAG_SVCTX, - init, - update, - final, - NULL, - NULL, - EVP_PKEY_RSA_fips_method, - SHA_CBLOCK, - sizeof(EVP_MD *)+sizeof(SHA_CTX), - }; - -const EVP_MD *EVP_sha1(void) - { - return(&sha1_md); - } - -static int init224(EVP_MD_CTX *ctx) - { return SHA224_Init(ctx->md_data); } -static int init256(EVP_MD_CTX *ctx) - { return SHA256_Init(ctx->md_data); } -/* - * Even though there're separate SHA224_[Update|Final], we call - * SHA256 functions even in SHA224 context. This is what happens - * there anyway, so we can spare few CPU cycles:-) - */ -static int update256(EVP_MD_CTX *ctx,const void *data,size_t count) - { return SHA256_Update(ctx->md_data,data,count); } -static int final256(EVP_MD_CTX *ctx,unsigned char *md) - { return SHA256_Final(md,ctx->md_data); } - -static const EVP_MD sha224_md= - { - NID_sha224, - NID_sha224WithRSAEncryption, - SHA224_DIGEST_LENGTH, - EVP_MD_FLAG_FIPS|EVP_MD_FLAG_SVCTX, - init224, - update256, - final256, - NULL, - NULL, - EVP_PKEY_RSA_fips_method, - SHA256_CBLOCK, - sizeof(EVP_MD *)+sizeof(SHA256_CTX), - }; - -const EVP_MD *EVP_sha224(void) - { return(&sha224_md); } - -static const EVP_MD sha256_md= - { - NID_sha256, - NID_sha256WithRSAEncryption, - SHA256_DIGEST_LENGTH, - EVP_MD_FLAG_FIPS|EVP_MD_FLAG_SVCTX, - init256, - update256, - final256, - NULL, - NULL, - EVP_PKEY_RSA_fips_method, - SHA256_CBLOCK, - sizeof(EVP_MD *)+sizeof(SHA256_CTX), - }; - -const EVP_MD *EVP_sha256(void) - { return(&sha256_md); } - -static int init384(EVP_MD_CTX *ctx) - { return SHA384_Init(ctx->md_data); } -static int init512(EVP_MD_CTX *ctx) - { return SHA512_Init(ctx->md_data); } -/* See comment in SHA224/256 section */ -static int update512(EVP_MD_CTX *ctx,const void *data,size_t count) - { return SHA512_Update(ctx->md_data,data,count); } -static int final512(EVP_MD_CTX *ctx,unsigned char *md) - { return SHA512_Final(md,ctx->md_data); } - -static const EVP_MD sha384_md= - { - NID_sha384, - NID_sha384WithRSAEncryption, - SHA384_DIGEST_LENGTH, - EVP_MD_FLAG_FIPS|EVP_MD_FLAG_SVCTX, - init384, - update512, - final512, - NULL, - NULL, - EVP_PKEY_RSA_fips_method, - SHA512_CBLOCK, - sizeof(EVP_MD *)+sizeof(SHA512_CTX), - }; - -const EVP_MD *EVP_sha384(void) - { return(&sha384_md); } - -static const EVP_MD sha512_md= - { - NID_sha512, - NID_sha512WithRSAEncryption, - SHA512_DIGEST_LENGTH, - EVP_MD_FLAG_FIPS|EVP_MD_FLAG_SVCTX, - init512, - update512, - final512, - NULL, - NULL, - EVP_PKEY_RSA_fips_method, - SHA512_CBLOCK, - sizeof(EVP_MD *)+sizeof(SHA512_CTX), - }; - -const EVP_MD *EVP_sha512(void) - { return(&sha512_md); } - -#endif |