X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=crypto%2Frsa%2Frsa_pmeth.c;h=60bf6145abe651703d188dd8bf0b694199122ee1;hb=04485c5bc0dc7f49940e6d91b27cdcc7b83a8ab5;hp=168a33ee56fd3a1e3a39bff2bbd4c4680bc6271d;hpb=eaff5a1412011574860a74ff9076838ea1e59dd0;p=oweals%2Fopenssl.git

diff --git a/crypto/rsa/rsa_pmeth.c b/crypto/rsa/rsa_pmeth.c
index 168a33ee56..60bf6145ab 100644
--- a/crypto/rsa/rsa_pmeth.c
+++ b/crypto/rsa/rsa_pmeth.c
@@ -1,5 +1,5 @@
 /* crypto/rsa/rsa_pmeth.c */
-/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
  * project 2006.
  */
 /* ====================================================================
@@ -61,13 +61,10 @@
 #include <openssl/asn1t.h>
 #include <openssl/x509.h>
 #include <openssl/rsa.h>
+#include <openssl/bn.h>
 #include <openssl/evp.h>
 #include "evp_locl.h"
-
-extern int int_rsa_verify(int dtype, const unsigned char *m, size_t m_len,
-		unsigned char *rm, size_t *prm_len,
-		const unsigned char *sigbuf, size_t siglen,
-		RSA *rsa);
+#include "rsa_locl.h"
 
 /* RSA pkey context structure */
 
@@ -82,6 +79,8 @@ typedef struct
 	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 */
@@ -98,6 +97,7 @@ static int pkey_rsa_init(EVP_PKEY_CTX *ctx)
 	rctx->pub_exp = NULL;
 	rctx->pad_mode = RSA_PKCS1_PADDING;
 	rctx->md = NULL;
+	rctx->mgf1md = NULL;
 	rctx->tbuf = NULL;
 
 	rctx->saltlen = -2;
@@ -109,6 +109,25 @@ static int pkey_rsa_init(EVP_PKEY_CTX *ctx)
 	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;
+	}
+
 static int setup_tbuf(RSA_PKEY_CTX *ctx, EVP_PKEY_CTX *pk)
 	{
 	if (ctx->tbuf)
@@ -170,8 +189,10 @@ static int pkey_rsa_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
 			{
 			if (!setup_tbuf(rctx, ctx))
 				return -1;
-			if (!RSA_padding_add_PKCS1_PSS(rsa, rctx->tbuf, tbs,
-						rctx->md, rctx->saltlen))
+			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);
@@ -226,10 +247,12 @@ static int pkey_rsa_verifyrecover(EVP_PKEY_CTX *ctx,
 			}
 		else if (rctx->pad_mode == RSA_PKCS1_PADDING)
 			{
-			unsigned int sltmp;
+			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
@@ -271,7 +294,8 @@ static int pkey_rsa_verify(EVP_PKEY_CTX *ctx,
 							rsa, RSA_NO_PADDING);
 			if (ret <= 0)
 				return 0;
-			ret = RSA_verify_PKCS1_PSS(rsa, tbs, rctx->md,
+			ret = RSA_verify_PKCS1_PSS_mgf1(rsa, tbs,
+						rctx->md, rctx->mgf1md,
 						rctx->tbuf, rctx->saltlen);
 			if (ret <= 0)
 				return 0;
@@ -286,7 +310,7 @@ static int pkey_rsa_verify(EVP_PKEY_CTX *ctx,
 			return -1;
 		rslen = RSA_public_decrypt(siglen, sig, rctx->tbuf,
 						rsa, rctx->pad_mode);
-		if (rslen <= 0)
+		if (rslen == 0)
 			return 0;
 		}
 
@@ -385,15 +409,25 @@ static int pkey_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
 				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:
-		if (p1 < -2)
-			return -2;
+		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;
 			}
-		rctx->saltlen = p1;
+		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:
@@ -417,9 +451,38 @@ static int pkey_rsa_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
 		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:
+#ifndef OPENSSL_NO_CMS
+		case EVP_PKEY_CTRL_CMS_ENCRYPT:
+		case EVP_PKEY_CTRL_CMS_DECRYPT:
+		case EVP_PKEY_CTRL_CMS_SIGN:
+#endif
 		return 1;
+		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;
@@ -523,6 +586,7 @@ 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,