aboutsummaryrefslogtreecommitdiffstats
path: root/crypto/rsa/rsa_pmeth.c
diff options
context:
space:
mode:
Diffstat (limited to 'crypto/rsa/rsa_pmeth.c')
-rw-r--r--crypto/rsa/rsa_pmeth.c1154
1 files changed, 544 insertions, 610 deletions
diff --git a/crypto/rsa/rsa_pmeth.c b/crypto/rsa/rsa_pmeth.c
index 157aa5c41d2a..d61d6e8b66ac 100644
--- a/crypto/rsa/rsa_pmeth.c
+++ b/crypto/rsa/rsa_pmeth.c
@@ -1,6 +1,7 @@
/* crypto/rsa/rsa_pmeth.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2006.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 2006.
*/
/* ====================================================================
* Copyright (c) 2006 The OpenSSL Project. All rights reserved.
@@ -10,7 +11,7 @@
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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
@@ -64,662 +65,595 @@
#include <openssl/bn.h>
#include <openssl/evp.h>
#ifndef OPENSSL_NO_CMS
-#include <openssl/cms.h>
+# include <openssl/cms.h>
#endif
#ifdef OPENSSL_FIPS
-#include <openssl/fips.h>
+# include <openssl/fips.h>
#endif
#include "evp_locl.h"
#include "rsa_locl.h"
/* RSA pkey context structure */
-typedef struct
- {
- /* Key gen parameters */
- int nbits;
- BIGNUM *pub_exp;
- /* Keygen callback info */
- int gentmp[2];
- /* RSA padding mode */
- int pad_mode;
- /* message digest */
- const EVP_MD *md;
- /* message digest for MGF1 */
- const EVP_MD *mgf1md;
- /* PSS/OAEP salt length */
- int saltlen;
- /* Temp buffer */
- unsigned char *tbuf;
- } RSA_PKEY_CTX;
+typedef struct {
+ /* Key gen parameters */
+ int nbits;
+ BIGNUM *pub_exp;
+ /* Keygen callback info */
+ int gentmp[2];
+ /* RSA padding mode */
+ int pad_mode;
+ /* message digest */
+ const EVP_MD *md;
+ /* message digest for MGF1 */
+ const EVP_MD *mgf1md;
+ /* PSS/OAEP salt length */
+ int saltlen;
+ /* Temp buffer */
+ unsigned char *tbuf;
+} RSA_PKEY_CTX;
static int pkey_rsa_init(EVP_PKEY_CTX *ctx)
- {
- RSA_PKEY_CTX *rctx;
- rctx = OPENSSL_malloc(sizeof(RSA_PKEY_CTX));
- if (!rctx)
- return 0;
- rctx->nbits = 1024;
- rctx->pub_exp = NULL;
- rctx->pad_mode = RSA_PKCS1_PADDING;
- rctx->md = NULL;
- rctx->mgf1md = NULL;
- rctx->tbuf = NULL;
-
- rctx->saltlen = -2;
-
- ctx->data = rctx;
- ctx->keygen_info = rctx->gentmp;
- ctx->keygen_info_count = 2;
-
- return 1;
- }
+{
+ RSA_PKEY_CTX *rctx;
+ rctx = OPENSSL_malloc(sizeof(RSA_PKEY_CTX));
+ if (!rctx)
+ return 0;
+ rctx->nbits = 1024;
+ rctx->pub_exp = NULL;
+ rctx->pad_mode = RSA_PKCS1_PADDING;
+ rctx->md = NULL;
+ rctx->mgf1md = NULL;
+ rctx->tbuf = NULL;
+
+ rctx->saltlen = -2;
+
+ ctx->data = rctx;
+ ctx->keygen_info = rctx->gentmp;
+ ctx->keygen_info_count = 2;
+
+ return 1;
+}
static int pkey_rsa_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
- {
- RSA_PKEY_CTX *dctx, *sctx;
- if (!pkey_rsa_init(dst))
- return 0;
- sctx = src->data;
- dctx = dst->data;
- dctx->nbits = sctx->nbits;
- if (sctx->pub_exp)
- {
- dctx->pub_exp = BN_dup(sctx->pub_exp);
- if (!dctx->pub_exp)
- return 0;
- }
- dctx->pad_mode = sctx->pad_mode;
- dctx->md = sctx->md;
- return 1;
- }
+{
+ RSA_PKEY_CTX *dctx, *sctx;
+ if (!pkey_rsa_init(dst))
+ return 0;
+ sctx = src->data;
+ dctx = dst->data;
+ dctx->nbits = sctx->nbits;
+ if (sctx->pub_exp) {
+ dctx->pub_exp = BN_dup(sctx->pub_exp);
+ if (!dctx->pub_exp)
+ return 0;
+ }
+ dctx->pad_mode = sctx->pad_mode;
+ dctx->md = sctx->md;
+ return 1;
+}
static int setup_tbuf(RSA_PKEY_CTX *ctx, EVP_PKEY_CTX *pk)
- {
- if (ctx->tbuf)
- return 1;
- ctx->tbuf = OPENSSL_malloc(EVP_PKEY_size(pk->pkey));
- if (!ctx->tbuf)
- return 0;
- return 1;
- }
+{
+ if (ctx->tbuf)
+ return 1;
+ ctx->tbuf = OPENSSL_malloc(EVP_PKEY_size(pk->pkey));
+ if (!ctx->tbuf)
+ return 0;
+ return 1;
+}
static void pkey_rsa_cleanup(EVP_PKEY_CTX *ctx)
- {
- RSA_PKEY_CTX *rctx = ctx->data;
- if (rctx)
- {
- if (rctx->pub_exp)
- BN_free(rctx->pub_exp);
- if (rctx->tbuf)
- OPENSSL_free(rctx->tbuf);
- OPENSSL_free(rctx);
- }
- }
+{
+ RSA_PKEY_CTX *rctx = ctx->data;
+ if (rctx) {
+ if (rctx->pub_exp)
+ BN_free(rctx->pub_exp);
+ if (rctx->tbuf)
+ OPENSSL_free(rctx->tbuf);
+ OPENSSL_free(rctx);
+ }
+}
+
#ifdef OPENSSL_FIPS
-/* FIP checker. Return value indicates status of context parameters:
- * 1 : redirect to FIPS.
- * 0 : don't redirect to FIPS.
- * -1 : illegal operation in FIPS mode.
+/*
+ * FIP checker. Return value indicates status of context parameters: 1 :
+ * redirect to FIPS. 0 : don't redirect to FIPS. -1 : illegal operation in
+ * FIPS mode.
*/
static int pkey_fips_check_ctx(EVP_PKEY_CTX *ctx)
- {
- RSA_PKEY_CTX *rctx = ctx->data;
- RSA *rsa = ctx->pkey->pkey.rsa;
- int rv = -1;
- if (!FIPS_mode())
- return 0;
- if (rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)
- rv = 0;
- if (!(rsa->meth->flags & RSA_FLAG_FIPS_METHOD) && rv)
- return -1;
- if (rctx->md && !(rctx->md->flags & EVP_MD_FLAG_FIPS))
- return rv;
- if (rctx->mgf1md && !(rctx->mgf1md->flags & EVP_MD_FLAG_FIPS))
- return rv;
- return 1;
- }
+{
+ RSA_PKEY_CTX *rctx = ctx->data;
+ RSA *rsa = ctx->pkey->pkey.rsa;
+ int rv = -1;
+ if (!FIPS_mode())
+ return 0;
+ if (rsa->flags & RSA_FLAG_NON_FIPS_ALLOW)
+ rv = 0;
+ if (!(rsa->meth->flags & RSA_FLAG_FIPS_METHOD) && rv)
+ return -1;
+ if (rctx->md && !(rctx->md->flags & EVP_MD_FLAG_FIPS))
+ return rv;
+ if (rctx->mgf1md && !(rctx->mgf1md->flags & EVP_MD_FLAG_FIPS))
+ return rv;
+ return 1;
+}
#endif
-static int pkey_rsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
- const unsigned char *tbs, size_t tbslen)
- {
- int ret;
- RSA_PKEY_CTX *rctx = ctx->data;
- RSA *rsa = ctx->pkey->pkey.rsa;
+static int pkey_rsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig,
+ size_t *siglen, const unsigned char *tbs,
+ size_t tbslen)
+{
+ int ret;
+ RSA_PKEY_CTX *rctx = ctx->data;
+ RSA *rsa = ctx->pkey->pkey.rsa;
#ifdef OPENSSL_FIPS
- ret = pkey_fips_check_ctx(ctx);
- if (ret < 0)
- {
- RSAerr(RSA_F_PKEY_RSA_SIGN, RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
- return -1;
- }
+ ret = pkey_fips_check_ctx(ctx);
+ if (ret < 0) {
+ RSAerr(RSA_F_PKEY_RSA_SIGN, RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
+ return -1;
+ }
#endif
- if (rctx->md)
- {
- if (tbslen != (size_t)EVP_MD_size(rctx->md))
- {
- RSAerr(RSA_F_PKEY_RSA_SIGN,
- RSA_R_INVALID_DIGEST_LENGTH);
- return -1;
- }
+ if (rctx->md) {
+ if (tbslen != (size_t)EVP_MD_size(rctx->md)) {
+ RSAerr(RSA_F_PKEY_RSA_SIGN, RSA_R_INVALID_DIGEST_LENGTH);
+ return -1;
+ }
#ifdef OPENSSL_FIPS
- if (ret > 0)
- {
- unsigned int slen;
- ret = FIPS_rsa_sign_digest(rsa, tbs, tbslen, rctx->md,
- rctx->pad_mode,
- rctx->saltlen,
- rctx->mgf1md,
- sig, &slen);
- if (ret > 0)
- *siglen = slen;
- else
- *siglen = 0;
- return ret;
- }
+ if (ret > 0) {
+ unsigned int slen;
+ ret = FIPS_rsa_sign_digest(rsa, tbs, tbslen, rctx->md,
+ rctx->pad_mode,
+ rctx->saltlen,
+ rctx->mgf1md, sig, &slen);
+ if (ret > 0)
+ *siglen = slen;
+ else
+ *siglen = 0;
+ return ret;
+ }
#endif
- if (EVP_MD_type(rctx->md) == NID_mdc2)
- {
- unsigned int sltmp;
- if (rctx->pad_mode != RSA_PKCS1_PADDING)
- return -1;
- ret = RSA_sign_ASN1_OCTET_STRING(NID_mdc2,
- tbs, tbslen, sig, &sltmp, rsa);
-
- if (ret <= 0)
- return ret;
- ret = sltmp;
- }
- else if (rctx->pad_mode == RSA_X931_PADDING)
- {
- if (!setup_tbuf(rctx, ctx))
- return -1;
- memcpy(rctx->tbuf, tbs, tbslen);
- rctx->tbuf[tbslen] =
- RSA_X931_hash_id(EVP_MD_type(rctx->md));
- ret = RSA_private_encrypt(tbslen + 1, rctx->tbuf,
- sig, rsa, RSA_X931_PADDING);
- }
- else if (rctx->pad_mode == RSA_PKCS1_PADDING)
- {
- unsigned int sltmp;
- ret = RSA_sign(EVP_MD_type(rctx->md),
- tbs, tbslen, sig, &sltmp, rsa);
- if (ret <= 0)
- return ret;
- ret = sltmp;
- }
- else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING)
- {
- if (!setup_tbuf(rctx, ctx))
- return -1;
- if (!RSA_padding_add_PKCS1_PSS_mgf1(rsa,
- rctx->tbuf, tbs,
- rctx->md, rctx->mgf1md,
- rctx->saltlen))
- return -1;
- ret = RSA_private_encrypt(RSA_size(rsa), rctx->tbuf,
- sig, rsa, RSA_NO_PADDING);
- }
- else
- return -1;
- }
- else
- ret = RSA_private_encrypt(tbslen, tbs, sig, ctx->pkey->pkey.rsa,
- rctx->pad_mode);
- if (ret < 0)
- return ret;
- *siglen = ret;
- return 1;
- }
-
+ if (EVP_MD_type(rctx->md) == NID_mdc2) {
+ unsigned int sltmp;
+ if (rctx->pad_mode != RSA_PKCS1_PADDING)
+ return -1;
+ ret = RSA_sign_ASN1_OCTET_STRING(NID_mdc2,
+ tbs, tbslen, sig, &sltmp, rsa);
+
+ if (ret <= 0)
+ return ret;
+ ret = sltmp;
+ } else if (rctx->pad_mode == RSA_X931_PADDING) {
+ if (!setup_tbuf(rctx, ctx))
+ return -1;
+ memcpy(rctx->tbuf, tbs, tbslen);
+ rctx->tbuf[tbslen] = RSA_X931_hash_id(EVP_MD_type(rctx->md));
+ ret = RSA_private_encrypt(tbslen + 1, rctx->tbuf,
+ sig, rsa, RSA_X931_PADDING);
+ } else if (rctx->pad_mode == RSA_PKCS1_PADDING) {
+ unsigned int sltmp;
+ ret = RSA_sign(EVP_MD_type(rctx->md),
+ tbs, tbslen, sig, &sltmp, rsa);
+ if (ret <= 0)
+ return ret;
+ ret = sltmp;
+ } else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING) {
+ if (!setup_tbuf(rctx, ctx))
+ return -1;
+ if (!RSA_padding_add_PKCS1_PSS_mgf1(rsa,
+ rctx->tbuf, tbs,
+ rctx->md, rctx->mgf1md,
+ rctx->saltlen))
+ return -1;
+ ret = RSA_private_encrypt(RSA_size(rsa), rctx->tbuf,
+ sig, rsa, RSA_NO_PADDING);
+ } else
+ return -1;
+ } else
+ ret = RSA_private_encrypt(tbslen, tbs, sig, ctx->pkey->pkey.rsa,
+ rctx->pad_mode);
+ if (ret < 0)
+ return ret;
+ *siglen = ret;
+ return 1;
+}
static int pkey_rsa_verifyrecover(EVP_PKEY_CTX *ctx,
- unsigned char *rout, size_t *routlen,
- const unsigned char *sig, size_t siglen)
- {
- int ret;
- RSA_PKEY_CTX *rctx = ctx->data;
-
- if (rctx->md)
- {
- if (rctx->pad_mode == RSA_X931_PADDING)
- {
- if (!setup_tbuf(rctx, ctx))
- return -1;
- ret = RSA_public_decrypt(siglen, sig,
- rctx->tbuf, ctx->pkey->pkey.rsa,
- RSA_X931_PADDING);
- if (ret < 1)
- return 0;
- ret--;
- if (rctx->tbuf[ret] !=
- RSA_X931_hash_id(EVP_MD_type(rctx->md)))
- {
- RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER,
- RSA_R_ALGORITHM_MISMATCH);
- return 0;
- }
- if (ret != EVP_MD_size(rctx->md))
- {
- RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER,
- RSA_R_INVALID_DIGEST_LENGTH);
- return 0;
- }
- if (rout)
- memcpy(rout, rctx->tbuf, ret);
- }
- else if (rctx->pad_mode == RSA_PKCS1_PADDING)
- {
- size_t sltmp;
- ret = int_rsa_verify(EVP_MD_type(rctx->md),
- NULL, 0, rout, &sltmp,
- sig, siglen, ctx->pkey->pkey.rsa);
- if (ret <= 0)
- return 0;
- ret = sltmp;
- }
- else
- return -1;
- }
- else
- ret = RSA_public_decrypt(siglen, sig, rout, ctx->pkey->pkey.rsa,
- rctx->pad_mode);
- if (ret < 0)
- return ret;
- *routlen = ret;
- return 1;
- }
+ unsigned char *rout, size_t *routlen,
+ const unsigned char *sig, size_t siglen)
+{
+ int ret;
+ RSA_PKEY_CTX *rctx = ctx->data;
+
+ if (rctx->md) {
+ if (rctx->pad_mode == RSA_X931_PADDING) {
+ if (!setup_tbuf(rctx, ctx))
+ return -1;
+ ret = RSA_public_decrypt(siglen, sig,
+ rctx->tbuf, ctx->pkey->pkey.rsa,
+ RSA_X931_PADDING);
+ if (ret < 1)
+ return 0;
+ ret--;
+ if (rctx->tbuf[ret] != RSA_X931_hash_id(EVP_MD_type(rctx->md))) {
+ RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER,
+ RSA_R_ALGORITHM_MISMATCH);
+ return 0;
+ }
+ if (ret != EVP_MD_size(rctx->md)) {
+ RSAerr(RSA_F_PKEY_RSA_VERIFYRECOVER,
+ RSA_R_INVALID_DIGEST_LENGTH);
+ return 0;
+ }
+ if (rout)
+ memcpy(rout, rctx->tbuf, ret);
+ } else if (rctx->pad_mode == RSA_PKCS1_PADDING) {
+ size_t sltmp;
+ ret = int_rsa_verify(EVP_MD_type(rctx->md),
+ NULL, 0, rout, &sltmp,
+ sig, siglen, ctx->pkey->pkey.rsa);
+ if (ret <= 0)
+ return 0;
+ ret = sltmp;
+ } else
+ return -1;
+ } else
+ ret = RSA_public_decrypt(siglen, sig, rout, ctx->pkey->pkey.rsa,
+ rctx->pad_mode);
+ if (ret < 0)
+ return ret;
+ *routlen = ret;
+ return 1;
+}
static int pkey_rsa_verify(EVP_PKEY_CTX *ctx,
- const unsigned char *sig, size_t siglen,
- const unsigned char *tbs, size_t tbslen)
- {
- RSA_PKEY_CTX *rctx = ctx->data;
- RSA *rsa = ctx->pkey->pkey.rsa;
- size_t rslen;
+ const unsigned char *sig, size_t siglen,
+ const unsigned char *tbs, size_t tbslen)
+{
+ RSA_PKEY_CTX *rctx = ctx->data;
+ RSA *rsa = ctx->pkey->pkey.rsa;
+ size_t rslen;
#ifdef OPENSSL_FIPS
- int rv;
- rv = pkey_fips_check_ctx(ctx);
- if (rv < 0)
- {
- RSAerr(RSA_F_PKEY_RSA_VERIFY, RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
- return -1;
- }
+ int rv;
+ rv = pkey_fips_check_ctx(ctx);
+ if (rv < 0) {
+ RSAerr(RSA_F_PKEY_RSA_VERIFY,
+ RSA_R_OPERATION_NOT_ALLOWED_IN_FIPS_MODE);
+ return -1;
+ }
#endif
- if (rctx->md)
- {
+ if (rctx->md) {
#ifdef OPENSSL_FIPS
- if (rv > 0)
- {
- return FIPS_rsa_verify_digest(rsa,
- tbs, tbslen,
- rctx->md,
- rctx->pad_mode,
- rctx->saltlen,
- rctx->mgf1md,
- sig, siglen);
-
- }
+ if (rv > 0) {
+ return FIPS_rsa_verify_digest(rsa,
+ tbs, tbslen,
+ rctx->md,
+ rctx->pad_mode,
+ rctx->saltlen,
+ rctx->mgf1md, sig, siglen);
+
+ }
#endif
- if (rctx->pad_mode == RSA_PKCS1_PADDING)
- return RSA_verify(EVP_MD_type(rctx->md), tbs, tbslen,
- sig, siglen, rsa);
- if (rctx->pad_mode == RSA_X931_PADDING)
- {
- if (pkey_rsa_verifyrecover(ctx, NULL, &rslen,
- sig, siglen) <= 0)
- return 0;
- }
- else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING)
- {
- int ret;
- if (!setup_tbuf(rctx, ctx))
- return -1;
- ret = RSA_public_decrypt(siglen, sig, rctx->tbuf,
- rsa, RSA_NO_PADDING);
- if (ret <= 0)
- return 0;
- ret = RSA_verify_PKCS1_PSS_mgf1(rsa, tbs,
- rctx->md, rctx->mgf1md,
- rctx->tbuf, rctx->saltlen);
- if (ret <= 0)
- return 0;
- return 1;
- }
- else
- return -1;
- }
- else
- {
- if (!setup_tbuf(rctx, ctx))
- return -1;
- rslen = RSA_public_decrypt(siglen, sig, rctx->tbuf,
- rsa, rctx->pad_mode);
- if (rslen == 0)
- return 0;
- }
-
- if ((rslen != tbslen) || memcmp(tbs, rctx->tbuf, rslen))
- return 0;
-
- return 1;
-
- }
-
+ if (rctx->pad_mode == RSA_PKCS1_PADDING)
+ return RSA_verify(EVP_MD_type(rctx->md), tbs, tbslen,
+ sig, siglen, rsa);
+ if (rctx->pad_mode == RSA_X931_PADDING) {
+ if (pkey_rsa_verifyrecover(ctx, NULL, &rslen, sig, siglen) <= 0)
+ return 0;
+ } else if (rctx->pad_mode == RSA_PKCS1_PSS_PADDING) {
+ int ret;
+ if (!setup_tbuf(rctx, ctx))
+ return -1;
+ ret = RSA_public_decrypt(siglen, sig, rctx->tbuf,
+ rsa, RSA_NO_PADDING);
+ if (ret <= 0)
+ return 0;
+ ret = RSA_verify_PKCS1_PSS_mgf1(rsa, tbs,
+ rctx->md, rctx->mgf1md,
+ rctx->tbuf, rctx->saltlen);
+ if (ret <= 0)
+ return 0;
+ return 1;
+ } else
+ return -1;
+ } else {
+ if (!setup_tbuf(rctx, ctx))
+ return -1;
+ rslen = RSA_public_decrypt(siglen, sig, rctx->tbuf,
+ rsa, rctx->pad_mode);
+ if (rslen == 0)
+ return 0;
+ }
+
+ if ((rslen != tbslen) || memcmp(tbs, rctx->tbuf, rslen))
+ return 0;
+
+ return 1;
+
+}
static int pkey_rsa_encrypt(EVP_PKEY_CTX *ctx,
- unsigned char *out, size_t *outlen,
- const unsigned char *in, size_t inlen)
- {
- int ret;
- RSA_PKEY_CTX *rctx = ctx->data;
- ret = RSA_public_encrypt(inlen, in, out, ctx->pkey->pkey.rsa,
- rctx->pad_mode);
- if (ret < 0)
- return ret;
- *outlen = ret;
- return 1;
- }
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
+{
+ int ret;
+ RSA_PKEY_CTX *rctx = ctx->data;
+ ret = RSA_public_encrypt(inlen, in, out, ctx->pkey->pkey.rsa,
+ rctx->pad_mode);
+ if (ret < 0)
+ return ret;
+ *outlen = ret;
+ return 1;
+}
static int pkey_rsa_decrypt(EVP_PKEY_CTX *ctx,
- unsigned char *out, size_t *outlen,
- const unsigned char *in, size_t inlen)
- {
- int ret;
- RSA_PKEY_CTX *rctx = ctx->data;
- ret = RSA_private_decrypt(inlen, in, out, ctx->pkey->pkey.rsa,
- rctx->pad_mode);
- if (ret < 0)
- return ret;
- *outlen = ret;
- return 1;
- }
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
+{
+ int ret;
+ RSA_PKEY_CTX *rctx = ctx->data;
+ ret = RSA_private_decrypt(inlen, in, out, ctx->pkey->pkey.rsa,
+ rctx->pad_mode);
+ if (ret < 0)
+ return ret;
+ *outlen = ret;
+ return 1;
+}
static int check_padding_md(const EVP_MD *md, int padding)
- {
- if (!md)
- return 1;
-
- if (padding == RSA_NO_PADDING)
- {
- RSAerr(RSA_F_CHECK_PADDING_MD, RSA_R_INVALID_PADDING_MODE);
- return 0;
- }
-
- if (padding == RSA_X931_PADDING)
- {
- if (RSA_X931_hash_id(EVP_MD_type(md)) == -1)
- {
- RSAerr(RSA_F_CHECK_PADDING_MD,
- RSA_R_INVALID_X931_DIGEST);
- return 0;
- }
- return 1;
- }
-
- return 1;
- }
-
+{
+ if (!md)
+ return 1;
+
+ if (padding == RSA_NO_PADDING) {
+ RSAerr(RSA_F_CHECK_PADDING_MD, RSA_R_INVALID_PADDING_MODE);
+ return 0;
+ }
+
+ if (padding == RSA_X931_PADDING) {
+ if (RSA_X931_hash_id(EVP_MD_type(md)) == -1) {
+ RSAerr(RSA_F_CHECK_PADDING_MD, RSA_R_INVALID_X931_DIGEST);
+ return 0;
+ }
+ return 1;
+ }
+
+ return 1;
+}
static int pkey_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
- {
- RSA_PKEY_CTX *rctx = ctx->data;
- switch (type)
- {
- case EVP_PKEY_CTRL_RSA_PADDING:
- if ((p1 >= RSA_PKCS1_PADDING) && (p1 <= RSA_PKCS1_PSS_PADDING))
- {
- if (!check_padding_md(rctx->md, p1))
- return 0;
- if (p1 == RSA_PKCS1_PSS_PADDING)
- {
- if (!(ctx->operation &
- (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY)))
- goto bad_pad;
- if (!rctx->md)
- rctx->md = EVP_sha1();
- }
- if (p1 == RSA_PKCS1_OAEP_PADDING)
- {
- if (!(ctx->operation & EVP_PKEY_OP_TYPE_CRYPT))
- goto bad_pad;
- if (!rctx->md)
- rctx->md = EVP_sha1();
- }
- rctx->pad_mode = p1;
- return 1;
- }
- bad_pad:
- RSAerr(RSA_F_PKEY_RSA_CTRL,
- RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE);
- return -2;
-
- case EVP_PKEY_CTRL_GET_RSA_PADDING:
- *(int *)p2 = rctx->pad_mode;
- return 1;
-
- case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
- case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
- if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING)
- {
- RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_PSS_SALTLEN);
- return -2;
- }
- if (type == EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN)
- *(int *)p2 = rctx->saltlen;
- else
- {
- if (p1 < -2)
- return -2;
- rctx->saltlen = p1;
- }
- return 1;
-
- case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
- if (p1 < 256)
- {
- RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_KEYBITS);
- return -2;
- }
- rctx->nbits = p1;
- return 1;
-
- case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
- if (!p2)
- return -2;
- rctx->pub_exp = p2;
- return 1;
-
- case EVP_PKEY_CTRL_MD:
- if (!check_padding_md(p2, rctx->pad_mode))
- return 0;
- rctx->md = p2;
- return 1;
-
- case EVP_PKEY_CTRL_RSA_MGF1_MD:
- case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
- if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING)
- {
- RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_MGF1_MD);
- return -2;
- }
- if (type == EVP_PKEY_CTRL_GET_RSA_MGF1_MD)
- {
- if (rctx->mgf1md)
- *(const EVP_MD **)p2 = rctx->mgf1md;
- else
- *(const EVP_MD **)p2 = rctx->md;
- }
- else
- rctx->mgf1md = p2;
- return 1;
-
- case EVP_PKEY_CTRL_DIGESTINIT:
- case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
- case EVP_PKEY_CTRL_PKCS7_DECRYPT:
- case EVP_PKEY_CTRL_PKCS7_SIGN:
- return 1;
+{
+ RSA_PKEY_CTX *rctx = ctx->data;
+ switch (type) {
+ case EVP_PKEY_CTRL_RSA_PADDING:
+ if ((p1 >= RSA_PKCS1_PADDING) && (p1 <= RSA_PKCS1_PSS_PADDING)) {
+ if (!check_padding_md(rctx->md, p1))
+ return 0;
+ if (p1 == RSA_PKCS1_PSS_PADDING) {
+ if (!(ctx->operation &
+ (EVP_PKEY_OP_SIGN | EVP_PKEY_OP_VERIFY)))
+ goto bad_pad;
+ if (!rctx->md)
+ rctx->md = EVP_sha1();
+ }
+ if (p1 == RSA_PKCS1_OAEP_PADDING) {
+ if (!(ctx->operation & EVP_PKEY_OP_TYPE_CRYPT))
+ goto bad_pad;
+ if (!rctx->md)
+ rctx->md = EVP_sha1();
+ }
+ rctx->pad_mode = p1;
+ return 1;
+ }
+ bad_pad:
+ RSAerr(RSA_F_PKEY_RSA_CTRL,
+ RSA_R_ILLEGAL_OR_UNSUPPORTED_PADDING_MODE);
+ return -2;
+
+ case EVP_PKEY_CTRL_GET_RSA_PADDING:
+ *(int *)p2 = rctx->pad_mode;
+ return 1;
+
+ case EVP_PKEY_CTRL_RSA_PSS_SALTLEN:
+ case EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN:
+ if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING) {
+ RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_PSS_SALTLEN);
+ return -2;
+ }
+ if (type == EVP_PKEY_CTRL_GET_RSA_PSS_SALTLEN)
+ *(int *)p2 = rctx->saltlen;
+ else {
+ if (p1 < -2)
+ return -2;
+ rctx->saltlen = p1;
+ }
+ return 1;
+
+ case EVP_PKEY_CTRL_RSA_KEYGEN_BITS:
+ if (p1 < 256) {
+ RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_KEYBITS);
+ return -2;
+ }
+ rctx->nbits = p1;
+ return 1;
+
+ case EVP_PKEY_CTRL_RSA_KEYGEN_PUBEXP:
+ if (!p2)
+ return -2;
+ rctx->pub_exp = p2;
+ return 1;
+
+ case EVP_PKEY_CTRL_MD:
+ if (!check_padding_md(p2, rctx->pad_mode))
+ return 0;
+ rctx->md = p2;
+ return 1;
+
+ case EVP_PKEY_CTRL_RSA_MGF1_MD:
+ case EVP_PKEY_CTRL_GET_RSA_MGF1_MD:
+ if (rctx->pad_mode != RSA_PKCS1_PSS_PADDING) {
+ RSAerr(RSA_F_PKEY_RSA_CTRL, RSA_R_INVALID_MGF1_MD);
+ return -2;
+ }
+ if (type == EVP_PKEY_CTRL_GET_RSA_MGF1_MD) {
+ if (rctx->mgf1md)
+ *(const EVP_MD **)p2 = rctx->mgf1md;
+ else
+ *(const EVP_MD **)p2 = rctx->md;
+ } else
+ rctx->mgf1md = p2;
+ return 1;
+
+ case EVP_PKEY_CTRL_DIGESTINIT:
+ case EVP_PKEY_CTRL_PKCS7_ENCRYPT:
+ case EVP_PKEY_CTRL_PKCS7_DECRYPT:
+ case EVP_PKEY_CTRL_PKCS7_SIGN:
+ return 1;
#ifndef OPENSSL_NO_CMS
- case EVP_PKEY_CTRL_CMS_DECRYPT:
- {
- X509_ALGOR *alg = NULL;
- ASN1_OBJECT *encalg = NULL;
- if (p2)
- CMS_RecipientInfo_ktri_get0_algs(p2, NULL, NULL, &alg);
- if (alg)
- X509_ALGOR_get0(&encalg, NULL, NULL, alg);
- if (encalg && OBJ_obj2nid(encalg) == NID_rsaesOaep)
- rctx->pad_mode = RSA_PKCS1_OAEP_PADDING;
- }
- case EVP_PKEY_CTRL_CMS_ENCRYPT:
- case EVP_PKEY_CTRL_CMS_SIGN:
- return 1;
+ case EVP_PKEY_CTRL_CMS_DECRYPT:
+ {
+ X509_ALGOR *alg = NULL;
+ ASN1_OBJECT *encalg = NULL;
+ if (p2)
+ CMS_RecipientInfo_ktri_get0_algs(p2, NULL, NULL, &alg);
+ if (alg)
+ X509_ALGOR_get0(&encalg, NULL, NULL, alg);
+ if (encalg && OBJ_obj2nid(encalg) == NID_rsaesOaep)
+ rctx->pad_mode = RSA_PKCS1_OAEP_PADDING;
+ }
+ case EVP_PKEY_CTRL_CMS_ENCRYPT:
+ case EVP_PKEY_CTRL_CMS_SIGN:
+ return 1;
#endif
- case EVP_PKEY_CTRL_PEER_KEY:
- RSAerr(RSA_F_PKEY_RSA_CTRL,
- RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
- return -2;
+ case EVP_PKEY_CTRL_PEER_KEY:
+ RSAerr(RSA_F_PKEY_RSA_CTRL,
+ RSA_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+
+ default:
+ return -2;
- default:
- return -2;
+ }
+}
- }
- }
-
static int pkey_rsa_ctrl_str(EVP_PKEY_CTX *ctx,
- const char *type, const char *value)
- {
- if (!value)
- {
- RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_VALUE_MISSING);
- return 0;
- }
- if (!strcmp(type, "rsa_padding_mode"))
- {
- int pm;
- if (!strcmp(value, "pkcs1"))
- pm = RSA_PKCS1_PADDING;
- else if (!strcmp(value, "sslv23"))
- pm = RSA_SSLV23_PADDING;
- else if (!strcmp(value, "none"))
- pm = RSA_NO_PADDING;
- else if (!strcmp(value, "oeap"))
- pm = RSA_PKCS1_OAEP_PADDING;
- else if (!strcmp(value, "oaep"))
- pm = RSA_PKCS1_OAEP_PADDING;
- else if (!strcmp(value, "x931"))
- pm = RSA_X931_PADDING;
- else if (!strcmp(value, "pss"))
- pm = RSA_PKCS1_PSS_PADDING;
- else
- {
- RSAerr(RSA_F_PKEY_RSA_CTRL_STR,
- RSA_R_UNKNOWN_PADDING_TYPE);
- return -2;
- }
- return EVP_PKEY_CTX_set_rsa_padding(ctx, pm);
- }
-
- if (!strcmp(type, "rsa_pss_saltlen"))
- {
- int saltlen;
- saltlen = atoi(value);
- return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, saltlen);
- }
-
- if (!strcmp(type, "rsa_keygen_bits"))
- {
- int nbits;
- nbits = atoi(value);
- return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, nbits);
- }
-
- if (!strcmp(type, "rsa_keygen_pubexp"))
- {
- int ret;
- BIGNUM *pubexp = NULL;
- if (!BN_asc2bn(&pubexp, value))
- return 0;
- ret = EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp);
- if (ret <= 0)
- BN_free(pubexp);
- return ret;
- }
-
- return -2;
- }
+ const char *type, const char *value)
+{
+ if (!value) {
+ RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_VALUE_MISSING);
+ return 0;
+ }
+ if (!strcmp(type, "rsa_padding_mode")) {
+ int pm;
+ if (!strcmp(value, "pkcs1"))
+ pm = RSA_PKCS1_PADDING;
+ else if (!strcmp(value, "sslv23"))
+ pm = RSA_SSLV23_PADDING;
+ else if (!strcmp(value, "none"))
+ pm = RSA_NO_PADDING;
+ else if (!strcmp(value, "oeap"))
+ pm = RSA_PKCS1_OAEP_PADDING;
+ else if (!strcmp(value, "oaep"))
+ pm = RSA_PKCS1_OAEP_PADDING;
+ else if (!strcmp(value, "x931"))
+ pm = RSA_X931_PADDING;
+ else if (!strcmp(value, "pss"))
+ pm = RSA_PKCS1_PSS_PADDING;
+ else {
+ RSAerr(RSA_F_PKEY_RSA_CTRL_STR, RSA_R_UNKNOWN_PADDING_TYPE);
+ return -2;
+ }
+ return EVP_PKEY_CTX_set_rsa_padding(ctx, pm);
+ }
+
+ if (!strcmp(type, "rsa_pss_saltlen")) {
+ int saltlen;
+ saltlen = atoi(value);
+ return EVP_PKEY_CTX_set_rsa_pss_saltlen(ctx, saltlen);
+ }
+
+ if (!strcmp(type, "rsa_keygen_bits")) {
+ int nbits;
+ nbits = atoi(value);
+ return EVP_PKEY_CTX_set_rsa_keygen_bits(ctx, nbits);
+ }
+
+ if (!strcmp(type, "rsa_keygen_pubexp")) {
+ int ret;
+ BIGNUM *pubexp = NULL;
+ if (!BN_asc2bn(&pubexp, value))
+ return 0;
+ ret = EVP_PKEY_CTX_set_rsa_keygen_pubexp(ctx, pubexp);
+ if (ret <= 0)
+ BN_free(pubexp);
+ return ret;
+ }
+
+ return -2;
+}
static int pkey_rsa_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
- {
- RSA *rsa = NULL;
- RSA_PKEY_CTX *rctx = ctx->data;
- BN_GENCB *pcb, cb;
- int ret;
- if (!rctx->pub_exp)
- {
- rctx->pub_exp = BN_new();
- if (!rctx->pub_exp || !BN_set_word(rctx->pub_exp, RSA_F4))
- return 0;
- }
- rsa = RSA_new();
- if (!rsa)
- return 0;
- if (ctx->pkey_gencb)
- {
- pcb = &cb;
- evp_pkey_set_cb_translate(pcb, ctx);
- }
- else
- pcb = NULL;
- ret = RSA_generate_key_ex(rsa, rctx->nbits, rctx->pub_exp, pcb);
- if (ret > 0)
- EVP_PKEY_assign_RSA(pkey, rsa);
- else
- RSA_free(rsa);
- return ret;
- }
-
-const EVP_PKEY_METHOD rsa_pkey_meth =
- {
- EVP_PKEY_RSA,
- EVP_PKEY_FLAG_AUTOARGLEN,
- pkey_rsa_init,
- pkey_rsa_copy,
- pkey_rsa_cleanup,
-
- 0,0,
-
- 0,
- pkey_rsa_keygen,
-
- 0,
- pkey_rsa_sign,
-
- 0,
- pkey_rsa_verify,
-
- 0,
- pkey_rsa_verifyrecover,
-
-
- 0,0,0,0,
-
- 0,
- pkey_rsa_encrypt,
-
- 0,
- pkey_rsa_decrypt,
-
- 0,0,
-
- pkey_rsa_ctrl,
- pkey_rsa_ctrl_str
-
-
- };
+{
+ RSA *rsa = NULL;
+ RSA_PKEY_CTX *rctx = ctx->data;
+ BN_GENCB *pcb, cb;
+ int ret;
+ if (!rctx->pub_exp) {
+ rctx->pub_exp = BN_new();
+ if (!rctx->pub_exp || !BN_set_word(rctx->pub_exp, RSA_F4))
+ return 0;
+ }
+ rsa = RSA_new();
+ if (!rsa)
+ return 0;
+ if (ctx->pkey_gencb) {
+ pcb = &cb;
+ evp_pkey_set_cb_translate(pcb, ctx);
+ } else
+ pcb = NULL;
+ ret = RSA_generate_key_ex(rsa, rctx->nbits, rctx->pub_exp, pcb);
+ if (ret > 0)
+ EVP_PKEY_assign_RSA(pkey, rsa);
+ else
+ RSA_free(rsa);
+ return ret;
+}
+
+const EVP_PKEY_METHOD rsa_pkey_meth = {
+ EVP_PKEY_RSA,
+ EVP_PKEY_FLAG_AUTOARGLEN,
+ pkey_rsa_init,
+ pkey_rsa_copy,
+ pkey_rsa_cleanup,
+
+ 0, 0,
+
+ 0,
+ pkey_rsa_keygen,
+
+ 0,
+ pkey_rsa_sign,
+
+ 0,
+ pkey_rsa_verify,
+
+ 0,
+ pkey_rsa_verifyrecover,
+
+ 0, 0, 0, 0,
+
+ 0,
+ pkey_rsa_encrypt,
+
+ 0,
+ pkey_rsa_decrypt,
+
+ 0, 0,
+
+ pkey_rsa_ctrl,
+ pkey_rsa_ctrl_str
+};