X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=crypto%2Fevp%2Fe_aes.c;h=6c5bc294691cec48e02401a3e5b5748caccdcdff;hp=c0fd0312b0df67d6d7fc5b85ff5897a68b4fa120;hb=612f4e2384e4cfecef42734b8b7d988cf849e74e;hpb=9575d1a91ad9dd6eb5c964365dfbb72dbd3d1333

diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c
index c0fd0312b0..6c5bc29469 100644
--- a/crypto/evp/e_aes.c
+++ b/crypto/evp/e_aes.c
@@ -1260,7 +1260,10 @@ static int aes_gcm_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			gctx->ctr = NULL;
 			break;
 			}
+		else
 #endif
+		(void)0;	/* terminate potentially open 'else' */
+
 		AES_set_encrypt_key(key, ctx->key_len * 8, &gctx->ks.ks);
 		CRYPTO_gcm128_init(&gctx->gcm, &gctx->ks, (block128_f)AES_encrypt);
 #ifdef AES_CTR_ASM
@@ -1632,13 +1635,11 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 		xctx->stream = NULL;
 #endif
 		/* key_len is two AES keys */
-#if !(defined(__arm__) || defined(__arm))	/* not yet? */
 #ifdef BSAES_CAPABLE
 		if (BSAES_CAPABLE)
 			xctx->stream = enc ? bsaes_xts_encrypt : bsaes_xts_decrypt;
 		else
 #endif
-#endif
 #ifdef VPAES_CAPABLE
 		if (VPAES_CAPABLE)
 		    {
@@ -1653,14 +1654,17 @@ static int aes_xts_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 			xctx->xts.block1 = (block128_f)vpaes_decrypt;
 			}
 
-		vpaes_set_encrypt_key(key + ctx->key_len/2,
+		    vpaes_set_encrypt_key(key + ctx->key_len/2,
 						ctx->key_len * 4, &xctx->ks2.ks);
-		xctx->xts.block2 = (block128_f)vpaes_encrypt;
+		    xctx->xts.block2 = (block128_f)vpaes_encrypt;
 
-		xctx->xts.key1 = &xctx->ks1;
-		break;
-		}
+		    xctx->xts.key1 = &xctx->ks1;
+		    break;
+		    }
+		else
 #endif
+		(void)0;	/* terminate potentially open 'else' */
+
 		if (enc)
 			{
 			AES_set_encrypt_key(key, ctx->key_len * 4, &xctx->ks1.ks);
@@ -1880,4 +1884,102 @@ BLOCK_CIPHER_custom(NID_aes,128,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
 BLOCK_CIPHER_custom(NID_aes,192,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
 BLOCK_CIPHER_custom(NID_aes,256,1,12,ccm,CCM,EVP_CIPH_FLAG_FIPS|CUSTOM_FLAGS)
 
+typedef struct
+	{
+	union { double align; AES_KEY ks; } ks;
+	/* Indicates if IV has been set */
+	unsigned char *iv;
+	} EVP_AES_WRAP_CTX;
+
+static int aes_wrap_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
+                        const unsigned char *iv, int enc)
+	{
+	EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
+	if (!iv && !key)
+		return 1;
+	if (key)
+		{
+		if (ctx->encrypt)
+			AES_set_encrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
+		else
+			AES_set_decrypt_key(key, ctx->key_len * 8, &wctx->ks.ks);
+		if (!iv)
+			wctx->iv = NULL;
+		}
+	if (iv)
+		{
+		memcpy(ctx->iv, iv, 8);
+		wctx->iv = ctx->iv;
+		}
+	return 1;
+	}
+
+static int aes_wrap_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
+		const unsigned char *in, size_t inlen)
+	{
+	EVP_AES_WRAP_CTX *wctx = ctx->cipher_data;
+	size_t rv;
+	if (inlen % 8)
+		return 0;
+	if (!out)
+		{
+		if (ctx->encrypt)
+			return inlen + 8;
+		else
+			return inlen - 8;
+		}
+	if (!in)
+		return 0;
+	if (ctx->encrypt)
+		rv = CRYPTO_128_wrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
+						(block128_f)AES_encrypt);
+	else
+		rv = CRYPTO_128_unwrap(&wctx->ks.ks, wctx->iv, out, in, inlen,
+						(block128_f)AES_decrypt);
+	return rv ? (int)rv : -1;
+	}
+
+#define WRAP_FLAGS	(EVP_CIPH_WRAP_MODE \
+		| EVP_CIPH_CUSTOM_IV | EVP_CIPH_FLAG_CUSTOM_CIPHER \
+		| EVP_CIPH_ALWAYS_CALL_INIT | EVP_CIPH_FLAG_DEFAULT_ASN1)
+
+static const EVP_CIPHER aes_128_wrap = {
+	NID_id_aes128_wrap,
+	8, 16, 8, WRAP_FLAGS,
+	aes_wrap_init_key, aes_wrap_cipher,
+	NULL,	
+	sizeof(EVP_AES_WRAP_CTX),
+	NULL,NULL,NULL,NULL };
+
+const EVP_CIPHER *EVP_aes_128_wrap(void)
+	{
+	return &aes_128_wrap;
+	}
+
+static const EVP_CIPHER aes_192_wrap = {
+	NID_id_aes192_wrap,
+	8, 24, 8, WRAP_FLAGS,
+	aes_wrap_init_key, aes_wrap_cipher,
+	NULL,	
+	sizeof(EVP_AES_WRAP_CTX),
+	NULL,NULL,NULL,NULL };
+
+const EVP_CIPHER *EVP_aes_192_wrap(void)
+	{
+	return &aes_192_wrap;
+	}
+
+static const EVP_CIPHER aes_256_wrap = {
+	NID_id_aes256_wrap,
+	8, 32, 8, WRAP_FLAGS,
+	aes_wrap_init_key, aes_wrap_cipher,
+	NULL,	
+	sizeof(EVP_AES_WRAP_CTX),
+	NULL,NULL,NULL,NULL };
+
+const EVP_CIPHER *EVP_aes_256_wrap(void)
+	{
+	return &aes_256_wrap;
+	}
+
 #endif