rsaref.c

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	to->n=RSAref_bin2bn(from->m,NULL,RSAref_MAX_LEN);
	to->e=RSAref_bin2bn(from->e,NULL,RSAref_MAX_LEN);
	if ((to->n == NULL) || (to->e == NULL)) return(0);
	return(1);
	}
#endif

static int RSAref_Public_eay2ref(RSA *from, R_RSA_PUBLIC_KEY *to)
	{
	to->bits=BN_num_bits(from->n);
	if (!RSAref_bn2bin(from->n,to->modulus,MAX_RSA_MODULUS_LEN)) return(0);
	if (!RSAref_bn2bin(from->e,to->exponent,MAX_RSA_MODULUS_LEN)) return(0);
	return(1);
	}

#ifdef undef
static int RSAref_Private_ref2eay(RSArefPrivateKey *from, RSA *to)
	{
	if ((to->n=RSAref_bin2bn(from->m,NULL,RSAref_MAX_LEN)) == NULL)
		return(0);
	if ((to->e=RSAref_bin2bn(from->e,NULL,RSAref_MAX_LEN)) == NULL)
		return(0);
	if ((to->d=RSAref_bin2bn(from->d,NULL,RSAref_MAX_LEN)) == NULL)
		return(0);
	if ((to->p=RSAref_bin2bn(from->prime[0],NULL,RSAref_MAX_PLEN)) == NULL)
		return(0);
	if ((to->q=RSAref_bin2bn(from->prime[1],NULL,RSAref_MAX_PLEN)) == NULL)
		return(0);
	if ((to->dmp1=RSAref_bin2bn(from->pexp[0],NULL,RSAref_MAX_PLEN))
		== NULL)
		return(0);
	if ((to->dmq1=RSAref_bin2bn(from->pexp[1],NULL,RSAref_MAX_PLEN))
		== NULL)
		return(0);
	if ((to->iqmp=RSAref_bin2bn(from->coef,NULL,RSAref_MAX_PLEN)) == NULL)
		return(0);
	return(1);
	}
#endif

static int RSAref_Private_eay2ref(RSA *from, R_RSA_PRIVATE_KEY *to)
	{
	to->bits=BN_num_bits(from->n);
	if (!RSAref_bn2bin(from->n,to->modulus,MAX_RSA_MODULUS_LEN)) return(0);
	if (!RSAref_bn2bin(from->e,to->publicExponent,MAX_RSA_MODULUS_LEN)) return(0);
	if (!RSAref_bn2bin(from->d,to->exponent,MAX_RSA_MODULUS_LEN)) return(0);
	if (!RSAref_bn2bin(from->p,to->prime[0],MAX_RSA_PRIME_LEN)) return(0);
	if (!RSAref_bn2bin(from->q,to->prime[1],MAX_RSA_PRIME_LEN)) return(0);
	if (!RSAref_bn2bin(from->dmp1,to->primeExponent[0],MAX_RSA_PRIME_LEN)) return(0);
	if (!RSAref_bn2bin(from->dmq1,to->primeExponent[1],MAX_RSA_PRIME_LEN)) return(0);
	if (!RSAref_bn2bin(from->iqmp,to->coefficient,MAX_RSA_PRIME_LEN)) return(0);
	return(1);
	}

static int rsaref_private_decrypt(int len, const unsigned char *from, unsigned char *to,
	     RSA *rsa, int padding)
	{
	int i,outlen= -1;
	R_RSA_PRIVATE_KEY RSAkey;

	if (!RSAref_Private_eay2ref(rsa,&RSAkey))
		goto err;
	if ((i=RSAPrivateDecrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey)) != 0)
		{
		RSAREFerr(RSAREF_F_RSAREF_PRIVATE_DECRYPT,i);
		outlen= -1;
		}
err:
	memset(&RSAkey,0,sizeof(RSAkey));
	return(outlen);
	}

static int rsaref_private_encrypt(int len, const unsigned char *from, unsigned char *to,
	     RSA *rsa, int padding)
	{
	int i,outlen= -1;
	R_RSA_PRIVATE_KEY RSAkey;

	if (padding != RSA_PKCS1_PADDING)
		{
		RSAREFerr(RSAREF_F_RSAREF_PRIVATE_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
		goto err;
	}
	if (!RSAref_Private_eay2ref(rsa,&RSAkey))
		goto err;
	if ((i=RSAPrivateEncrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey)) != 0)
		{
		RSAREFerr(RSAREF_F_RSAREF_PRIVATE_ENCRYPT,i);
		outlen= -1;
		}
err:
	memset(&RSAkey,0,sizeof(RSAkey));
	return(outlen);
	}

static int rsaref_public_decrypt(int len, const unsigned char *from, unsigned char *to,
	     RSA *rsa, int padding)
	{
	int i,outlen= -1;
	R_RSA_PUBLIC_KEY RSAkey;

	if (!RSAref_Public_eay2ref(rsa,&RSAkey))
		goto err;
	if ((i=RSAPublicDecrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey)) != 0)
		{
		RSAREFerr(RSAREF_F_RSAREF_PUBLIC_DECRYPT,i);
		outlen= -1;
		}
err:
	memset(&RSAkey,0,sizeof(RSAkey));
	return(outlen);
	}

static int rsaref_public_encrypt(int len, const unsigned char *from, unsigned char *to,
	     RSA *rsa, int padding)
	{
	int outlen= -1;
	int i;
	R_RSA_PUBLIC_KEY RSAkey;
	R_RANDOM_STRUCT rnd;
	unsigned char buf[16];

	if (padding != RSA_PKCS1_PADDING && padding != RSA_SSLV23_PADDING) 
		{
		RSAREFerr(RSAREF_F_RSAREF_PUBLIC_ENCRYPT, RSA_R_UNKNOWN_PADDING_TYPE);
		goto err;
		}
	
	R_RandomInit(&rnd);
	R_GetRandomBytesNeeded((unsigned int *)&i,&rnd);
	while (i > 0)
		{
		if (RAND_bytes(buf,16) <= 0)
			goto err;
		R_RandomUpdate(&rnd,buf,(unsigned int)((i>16)?16:i));
		i-=16;
		}

	if (!RSAref_Public_eay2ref(rsa,&RSAkey))
		goto err;
	if ((i=RSAPublicEncrypt(to,(unsigned int *)&outlen,(unsigned char *)from,len,&RSAkey,&rnd)) != 0)
		{
		RSAREFerr(RSAREF_F_RSAREF_PUBLIC_ENCRYPT,i);
		outlen= -1;
		goto err;
		}
err:
	memset(&RSAkey,0,sizeof(RSAkey));
	R_RandomFinal(&rnd);
	memset(&rnd,0,sizeof(rnd));
	return(outlen);
	}

/*****************************************************************************
 * Symetric cipher and digest function registrars
 **/
static int rsaref_ciphers(ENGINE *e, const EVP_CIPHER **cipher,
	const int **nids, int nid)
	{
	int ok = 1;
	if(!cipher)
		{
		/* We are returning a list of supported nids */
		*nids = rsaref_cipher_nids;
		return (sizeof(rsaref_cipher_nids)-1)/sizeof(rsaref_cipher_nids[0]);
		}
	/* We are being asked for a specific cipher */
	switch (nid)
		{
	case NID_des_cbc:
		*cipher = &cipher_des_cbc; break;
	case NID_des_ede3_cbc:
		*cipher = &cipher_des_ede3_cbc; break;
	case NID_desx_cbc:
		*cipher = &cipher_desx_cbc; break;
	default:
		ok = 0;
		*cipher = NULL;
		break;
		}
	return ok;
	}
static int rsaref_digests(ENGINE *e, const EVP_MD **digest,
	const int **nids, int nid)
	{
	int ok = 1;
	if(!digest)
		{
		/* We are returning a list of supported nids */
		*nids = rsaref_digest_nids;
		return (sizeof(rsaref_digest_nids)-1)/sizeof(rsaref_digest_nids[0]);
		}
	/* We are being asked for a specific digest */
	switch (nid)
		{
	case NID_md2:
		*digest = &digest_md2; break;
	case NID_md5:
		*digest = &digest_md5; break;
	default:
		ok = 0;
		*digest = NULL;
		break;
		}
	return ok;
	}

/*****************************************************************************
 * DES functions
 **/
#undef data
#define data(ctx) ((DES_CBC_CTX *)(ctx)->cipher_data)
static int cipher_des_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
	const unsigned char *iv, int enc)
	{
	DES_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv, enc);
	return 1;
	}
static int cipher_des_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
	const unsigned char *in, unsigned int inl)
	{
	int ret = DES_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
	switch (ret)
		{
	case RE_LEN:
		RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
		break;
	case 0:
		break;
	default:
		RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_UNKNOWN_FAULT);
		}
	return !ret;
	}
static int cipher_des_cbc_clean(EVP_CIPHER_CTX *ctx)
	{
	memset(data(ctx), 0, ctx->cipher->ctx_size);
	return 1;
	}

#undef data
#define data(ctx) ((DES3_CBC_CTX *)(ctx)->cipher_data)
static int cipher_des_ede3_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
	const unsigned char *iv, int enc)
	{
	DES3_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv,
		enc);
	return 1;
	}
static int cipher_des_ede3_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
	const unsigned char *in, unsigned int inl)
	{
	int ret = DES3_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
	switch (ret)
		{
	case RE_LEN:
		RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
		break;
	case 0:
		break;
	default:
		RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_UNKNOWN_FAULT);
		}
	return !ret;
	}
static int cipher_des_ede3_cbc_clean(EVP_CIPHER_CTX *ctx)
	{
	memset(data(ctx), 0, ctx->cipher->ctx_size);
	return 1;
	}

#undef data
#define data(ctx) ((DESX_CBC_CTX *)(ctx)->cipher_data)
static int cipher_desx_cbc_init(EVP_CIPHER_CTX *ctx, const unsigned char *key,
	const unsigned char *iv, int enc)
	{
	DESX_CBCInit(data(ctx), (unsigned char *)key, (unsigned char *)iv,
		enc);
	return 1;
	}
static int cipher_desx_cbc_code(EVP_CIPHER_CTX *ctx, unsigned char *out,
	const unsigned char *in, unsigned int inl)
	{
	int ret = DESX_CBCUpdate(data(ctx), out, (unsigned char *)in, inl);
	switch (ret)
		{
	case RE_LEN:
		RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_LENGTH_NOT_BLOCK_ALIGNED);
		break;
	case 0:
		break;
	default:
		RSAREFerr(RSAREF_F_CIPHER_DES_CBC_CODE,RSAREF_R_UNKNOWN_FAULT);
		}
	return !ret;
	}
static int cipher_desx_cbc_clean(EVP_CIPHER_CTX *ctx)
	{
	memset(data(ctx), 0, ctx->cipher->ctx_size);
	return 1;
	}

/*****************************************************************************
 * MD functions
 **/
#undef data
#define data(ctx) ((MD2_CTX *)(ctx)->md_data)
static int digest_md2_init(EVP_MD_CTX *ctx)
	{
	MD2Init(data(ctx));
	return 1;
	}
static int digest_md2_update(EVP_MD_CTX *ctx,const void *data,
	unsigned long count)
	{
	MD2Update(data(ctx), (unsigned char *)data, (unsigned int)count);
	return 1;
	}
static int digest_md2_final(EVP_MD_CTX *ctx,unsigned char *md)
	{
	MD2Final(md, data(ctx));
	return 1;
	}

#undef data
#define data(ctx) ((MD5_CTX *)(ctx)->md_data)
static int digest_md5_init(EVP_MD_CTX *ctx)
	{
	MD5Init(data(ctx));
	return 1;
	}
static int digest_md5_update(EVP_MD_CTX *ctx,const void *data,
	unsigned long count)
	{
	MD5Update(data(ctx), (unsigned char *)data, (unsigned int)count);
	return 1;
	}
static int digest_md5_final(EVP_MD_CTX *ctx,unsigned char *md)
	{
	MD5Final(md, data(ctx));
	return 1;
	}