X-Git-Url: http://www.average.org/gitweb/?p=pam_pcsc_cr.git;a=blobdiff_plain;f=ossl_crypto.c;h=51594d3ddddf364e7384aa4e596ea600de3269c5;hp=4fdbcf3df134c0a73930a0a46a2c4acde50f9687;hb=ec614a7e3bc846cf9d3477303901759609c8f12f;hpb=8c8a47cd542e60381773fe23f2075aa5b896be4f

diff --git a/ossl_crypto.c b/ossl_crypto.c
index 4fdbcf3..51594d3 100644
--- a/ossl_crypto.c
+++ b/ossl_crypto.c
@@ -2,57 +2,37 @@
 # include "config.h"
 #endif
 #include <openssl/err.h>
+#include <openssl/aes.h>
 #include <openssl/sha.h>
-#include <openssl/evp.h>
 #include <openssl/hmac.h>
 
 #include "crypto_if.h"
 
+static const char *ossl_init(void)
+{
+	ERR_load_crypto_strings();
+	return "openssl";
+}
+
 static unsigned long ossl_encrypt(void *key, int keylen, void *iv,
 			void *pt, void *ct, int tlen)
 {
-	EVP_CIPHER_CTX ctx;
-	int outlen1, outlen2;
-	unsigned char hkey[16];
+	AES_KEY akey;
 
-	ERR_load_crypto_strings(); /* FIXME */
-
-	if (EVP_BytesToKey(EVP_aes_128_cbc(), EVP_sha1(),
-			NULL, key, keylen, 5, hkey, NULL) != 16) return 1UL;
-	if (!EVP_EncryptInit(&ctx, EVP_aes_128_cbc(), hkey, iv))
-		return ERR_get_error();
-	if (!EVP_EncryptUpdate(&ctx, ct, &outlen1, pt, tlen))
-		return ERR_get_error();
-	if (!EVP_EncryptFinal(&ctx, ct + outlen1, &outlen2))
+	if (AES_set_encrypt_key(key, keylen*8, &akey))
 		return ERR_get_error();
-	if (outlen1 + outlen2 != tlen) {
-		printf("enc tlen =%d outlen1=%d outlen2=%d\n",
-			tlen, outlen1, outlen2);
-		// return 1UL;
-	}
+	AES_cbc_encrypt(pt, ct, tlen, &akey, iv, AES_ENCRYPT);
 	return 0UL;
 }
 
 static unsigned long ossl_decrypt(void *key, int keylen, void *iv,
 			void *ct, void *pt, int tlen)
 {
-	EVP_CIPHER_CTX ctx;
-	int outlen1, outlen2;
-	unsigned char hkey[16];
+	AES_KEY akey;
 
-	if (EVP_BytesToKey(EVP_aes_128_cbc(), EVP_sha1(),
-			NULL, key, keylen, 5, hkey, NULL) != 16) return 1UL;
-	if (!EVP_DecryptInit(&ctx, EVP_aes_128_cbc(), hkey, iv))
+	if (AES_set_decrypt_key(key, keylen*8, &akey))
 		return ERR_get_error();
-	if (!EVP_DecryptUpdate(&ctx, ct, &outlen1, pt, tlen))
-		return ERR_get_error();
-	if (!EVP_DecryptFinal(&ctx, ct + outlen1, &outlen2))
-		return ERR_get_error();
-	if (outlen1 + outlen2 != tlen) {
-		printf("dec tlen =%d outlen1=%d outlen2=%d\n",
-			tlen, outlen1, outlen2);
-		// return 1UL;
-	}
+	AES_cbc_encrypt(ct, pt, tlen, &akey, iv, AES_DECRYPT);
 	return 0UL;
 }
 
@@ -63,21 +43,28 @@ static unsigned long ossl_hash(void *pt, int tlen, void *tag, int *taglen)
 	if (!SHA1_Init(&sctx)) return ERR_get_error();
 	if (!SHA1_Update(&sctx, pt, tlen)) return ERR_get_error();
 	if (!SHA1_Final(tag, &sctx)) return ERR_get_error();
-	*taglen = 20;
+	*taglen = SHA_DIGEST_LENGTH;
 	return 0UL;
 }
 
-static unsigned long ossl_hmac(void *pt, int tlen, void *key, int keylen,
+static unsigned long ossl_hmac(void *key, int keylen, void *pt, int tlen,
 			void *tag, int *taglen)
 {
+#if 1
 	HMAC_CTX hctx;
 
 	HMAC_CTX_init(&hctx);
-	if (!HMAC_Init_ex(&hctx, key, keylen, EVP_sha1(), NULL)) return ERR_get_error();
+	if (!HMAC_Init_ex(&hctx, key, keylen, EVP_sha1(), NULL))
+		return ERR_get_error();
 	if (!HMAC_Update(&hctx, pt, tlen)) return ERR_get_error();
 	if (!HMAC_Final(&hctx, tag, (unsigned int *)taglen))
 		return ERR_get_error();
 	HMAC_CTX_cleanup(&hctx);
+#else
+	if (HMAC(EVP_sha1(), key, keylen, pt, tlen,
+				tag, (unsigned int *)taglen) != tag)
+		return ERR_get_error();
+#endif
 	return 0UL;
 }
 
@@ -87,7 +74,7 @@ static const char *ossl_errstr(unsigned long err)
 }
 
 struct crypto_interface ossl_crypto_if = {
-	.name		= "openssl",
+	.init		= ossl_init,
 	.encrypt	= ossl_encrypt,
 	.decrypt	= ossl_decrypt,
 	.hash		= ossl_hash,