File 0002-Taking-only-the-general-HWAES_-function-de... of Package openssl

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File 0002-Taking-only-the-general-HWAES_-function-declarations.patch of Package openssl (Revision 4de7dd9c72a38f833d72a9d88ccd237a)

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From 80b935301e1bb302c92dac4e63d8212c2697721b Mon Sep 17 00:00:00 2001
From: "Leonidas S. Barbosa" <leosilva@linux.vnet.ibm.com>
Date: Tue, 1 Sep 2015 17:29:57 -0400
Subject: [PATCH 2/4] Taking only the general HWAES_* function declarations and
 calls.

From ddacb8f27ba4c8a8d51c306c150e1a8703b008f2
---
 crypto/evp/e_aes.c | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+)

diff --git a/crypto/evp/e_aes.c b/crypto/evp/e_aes.c
index f3ac729..ce4561c 100644
--- a/crypto/evp/e_aes.c
+++ b/crypto/evp/e_aes.c
@@ -498,6 +498,22 @@ const EVP_CIPHER *EVP_aes_##keylen##_##mode(void) \
 { return &aes_##keylen##_##mode; }
 #endif
 
+#if defined(HWAES_CAPABLE)
+int HWAES_set_encrypt_key(const unsigned char *userKey, const int bits,
+	AES_KEY *key);
+int HWAES_set_decrypt_key(const unsigned char *userKey, const int bits,
+	AES_KEY *key);
+void HWAES_encrypt(const unsigned char *in, unsigned char *out,
+	const AES_KEY *key);
+void HWAES_decrypt(const unsigned char *in, unsigned char *out,
+	const AES_KEY *key);
+void HWAES_cbc_encrypt(const unsigned char *in, unsigned char *out,
+	size_t length, const AES_KEY *key,
+	unsigned char *ivec, const int enc);
+void HWAES_ctr32_encrypt_blocks(const unsigned char *in, unsigned char *out,
+	size_t len, const AES_KEY *key, const unsigned char ivec[16]);
+#endif
+
 #define BLOCK_CIPHER_generic_pack(nid,keylen,flags)		\
 	BLOCK_CIPHER_generic(nid,keylen,16,16,cbc,cbc,CBC,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)	\
 	BLOCK_CIPHER_generic(nid,keylen,16,0,ecb,ecb,ECB,flags|EVP_CIPH_FLAG_DEFAULT_ASN1)	\
@@ -516,6 +532,19 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 	mode = ctx->cipher->flags & EVP_CIPH_MODE;
 	if ((mode == EVP_CIPH_ECB_MODE || mode == EVP_CIPH_CBC_MODE)
 	    && !enc)
+#ifdef HWAES_CAPABLE
+	    if (HWAES_CAPABLE)
+		{
+		ret = HWAES_set_decrypt_key(key,ctx->key_len*8,&dat->ks.ks);
+		dat->block      = (block128_f)HWAES_decrypt;
+		dat->stream.cbc = NULL;
+#ifdef HWAES_cbc_encrypt
+		if (mode==EVP_CIPH_CBC_MODE)
+		    dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
+#endif
+		}
+	    else
+#endif
 #ifdef BSAES_CAPABLE
 	    if (BSAES_CAPABLE && mode==EVP_CIPH_CBC_MODE)
 		{
@@ -544,6 +573,26 @@ static int aes_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
 					NULL;
 		}
 	else
+#ifdef HWAES_CAPABLE
+	    if (HWAES_CAPABLE)
+		{
+		ret = HWAES_set_encrypt_key(key,ctx->key_len*8,&dat->ks.ks);
+		dat->block      = (block128_f)HWAES_encrypt;
+		dat->stream.cbc = NULL;
+#ifdef HWAES_cbc_encrypt
+		if (mode==EVP_CIPH_CBC_MODE)
+		    dat->stream.cbc = (cbc128_f)HWAES_cbc_encrypt;
+		else
+#endif
+#ifdef HWAES_ctr32_encrypt_blocks
+		if (mode==EVP_CIPH_CTR_MODE)
+		    dat->stream.ctr = (ctr128_f)HWAES_ctr32_encrypt_blocks;
+		else
+#endif
+		(void)0;	/* terminate potentially open 'else' */
+		}
+	    else
+#endif
 #ifdef BSAES_CAPABLE
 	    if (BSAES_CAPABLE && mode==EVP_CIPH_CTR_MODE)
 		{
-- 
1.8.5.6

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