X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fec%2Fec_ameth.c;h=4a136619ab92a7b83367812eeb3195ae017d99c3;hp=11aa432d333b3be28d4bce368804ecdbc4b2a78c;hb=b2c0518e6ae73f09abadaac3d00e65ee0c315f14;hpb=448be743350791d32764fac38f5d3c8ffda481b2

diff --git a/crypto/ec/ec_ameth.c b/crypto/ec/ec_ameth.c
index 11aa432d33..4a136619ab 100644
--- a/crypto/ec/ec_ameth.c
+++ b/crypto/ec/ec_ameth.c
@@ -2,7 +2,7 @@
  * project 2006.
  */
 /* ====================================================================
- * Copyright (c) 2005 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 2006 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
@@ -59,6 +59,7 @@
 #include "cryptlib.h"
 #include <openssl/x509.h>
 #include <openssl/ec.h>
+#include "asn1_locl.h"
 
 static int eckey_param2type(int *pptype, void **ppval, EC_KEY *ec_key)
 	{
@@ -95,7 +96,7 @@ static int eckey_param2type(int *pptype, void **ppval, EC_KEY *ec_key)
 	return 1;
 	}
 
-static int eckey_pub_encode(X509_PUBKEY *pk, EVP_PKEY *pkey)
+static int eckey_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
 	{
 	EC_KEY *ec_key = pkey->pkey.ec;
 	void *pval = NULL;
@@ -218,6 +219,20 @@ static int eckey_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
 	return 0;
 	}
 
+static int eckey_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
+	{
+	int  r;
+	const EC_GROUP *group = EC_KEY_get0_group(b->pkey.ec);
+	const EC_POINT *pa = EC_KEY_get0_public_key(a->pkey.ec),
+	               *pb = EC_KEY_get0_public_key(b->pkey.ec);
+	r = EC_POINT_cmp(group, pa, pb, NULL);
+	if (r == 0)
+		return 1;
+	if (r == 1)
+		return 0;
+	return -2;
+	}
+
 static int eckey_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
 	{
 	const unsigned char *p = NULL;
@@ -290,7 +305,7 @@ static int eckey_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
 	return 0;
 	}
 
-static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
+static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
 {
 	EC_KEY		*ec_key;
 	unsigned char	*ep, *p;
@@ -344,17 +359,207 @@ static int eckey_priv_encode(PKCS8_PRIV_KEY_INFO *p8, EVP_PKEY *pkey)
 	return 1;
 }
 
+static int int_ec_size(const EVP_PKEY *pkey)
+	{
+	return ECDSA_size(pkey->pkey.ec);
+	}
+
+static int ec_bits(const EVP_PKEY *pkey)
+	{
+	BIGNUM *order = BN_new();
+	const EC_GROUP *group;
+	int ret;
+
+	if (!order)
+		{
+		ERR_clear_error();
+		return 0;
+		}
+	group = EC_KEY_get0_group(pkey->pkey.ec);
+	if (!EC_GROUP_get_order(group, order, NULL))
+		{
+		ERR_clear_error();
+		return 0;
+		}
+
+	ret = BN_num_bits(order);
+	BN_free(order);
+	return ret;
+	}
+
+static int ec_missing_parameters(const EVP_PKEY *pkey)
+	{
+	if (EC_KEY_get0_group(pkey->pkey.ec) == NULL)
+		return 1;
+	return 0;
+	}
+
+int ec_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
+	{
+	EC_GROUP *group = EC_GROUP_dup(EC_KEY_get0_group(from->pkey.ec));
+	if (group == NULL)
+		return 0;
+	if (EC_KEY_set_group(to->pkey.ec, group) == 0)
+		return 0;
+	EC_GROUP_free(group);
+	return 1;
+	}
+
+int ec_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
+	{
+	const EC_GROUP *group_a = EC_KEY_get0_group(a->pkey.ec),
+	               *group_b = EC_KEY_get0_group(b->pkey.ec);
+	if (EC_GROUP_cmp(group_a, group_b, NULL))
+		return 0;
+	else
+		return 1;
+	}
+
+static void int_ec_free(EVP_PKEY *pkey)
+	{
+	EC_KEY_free(pkey->pkey.ec);
+	}
+
+static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype)
+	{
+	unsigned char *buffer=NULL;
+	const char *ecstr;
+	size_t	buf_len=0, i;
+	int     ret=0, reason=ERR_R_BIO_LIB;
+	BIGNUM  *pub_key=NULL, *order=NULL;
+	BN_CTX  *ctx=NULL;
+	const EC_GROUP *group;
+	const EC_POINT *public_key;
+	const BIGNUM *priv_key;
+ 
+	if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
+		{
+		reason = ERR_R_PASSED_NULL_PARAMETER;
+		goto err;
+		}
+
+	ctx = BN_CTX_new();
+	if (ctx == NULL)
+		{
+		reason = ERR_R_MALLOC_FAILURE;
+		goto err;
+		}
+
+	if (ktype > 0)
+		{
+		public_key = EC_KEY_get0_public_key(x);
+		if ((pub_key = EC_POINT_point2bn(group, public_key,
+			EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
+			{
+			reason = ERR_R_EC_LIB;
+			goto err;
+			}
+		if (pub_key)
+			buf_len = (size_t)BN_num_bytes(pub_key);
+		}
+
+	if (ktype == 2)
+		{
+		priv_key = EC_KEY_get0_private_key(x);
+		if (priv_key && (i = (size_t)BN_num_bytes(priv_key)) > buf_len)
+			buf_len = i;
+		}
+	else
+		priv_key = NULL;
+
+	if (ktype > 0)
+		{
+		buf_len += 10;
+		if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
+			{
+			reason = ERR_R_MALLOC_FAILURE;
+			goto err;
+			}
+		}
+	if (ktype == 2)
+		ecstr = "Private-Key";
+	else if (ktype == 1)
+		ecstr = "Public-Key";
+	else
+		ecstr = "ECDSA-Parameters";
+
+	if (!BIO_indent(bp, off, 128))
+		goto err;
+	if ((order = BN_new()) == NULL)
+		goto err;
+	if (!EC_GROUP_get_order(group, order, NULL))
+		goto err;
+	if (BIO_printf(bp, "%s: (%d bit)\n", ecstr,
+		BN_num_bits(order)) <= 0) goto err;
+  
+	if ((priv_key != NULL) && !ASN1_bn_print(bp, "priv:", priv_key, 
+		buffer, off))
+		goto err;
+	if ((pub_key != NULL) && !ASN1_bn_print(bp, "pub: ", pub_key,
+		buffer, off))
+		goto err;
+	if (!ECPKParameters_print(bp, group, off))
+		goto err;
+	ret=1;
+err:
+	if (!ret)
+ 		ECerr(EC_F_EC_KEY_PRINT, reason);
+	if (pub_key) 
+		BN_free(pub_key);
+	if (order)
+		BN_free(order);
+	if (ctx)
+		BN_CTX_free(ctx);
+	if (buffer != NULL)
+		OPENSSL_free(buffer);
+	return(ret);
+	}
+
+static int eckey_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *ctx)
+	{
+	return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 0);
+	}
+
+static int eckey_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *ctx)
+	{
+	return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 1);
+	}
+
+
+static int eckey_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+							ASN1_PCTX *ctx)
+	{
+	return do_EC_KEY_print(bp, pkey->pkey.ec, indent, 2);
+	}
+
 EVP_PKEY_ASN1_METHOD eckey_asn1_meth = 
 	{
 	EVP_PKEY_EC,
+	EVP_PKEY_EC,
 	0,
-	0,
+	"ec",
+	"OpenSSL EC algorithm",
+
 	eckey_pub_decode,
 	eckey_pub_encode,
-	0,
+	eckey_pub_cmp,
+	eckey_pub_print,
+
 	eckey_priv_decode,
 	eckey_priv_encode,
-	0,
-	0,
+	eckey_priv_print,
+
+	int_ec_size,
+	ec_bits,
+
+	0,0,	
+	ec_missing_parameters,
+	ec_copy_parameters,
+	ec_cmp_parameters,
+	eckey_param_print,
+
+	int_ec_free,
 	0
 	};