crypto: vmx - Adding asm subroutines for XTS

This patch add XTS subroutines using VMX-crypto driver. It gives a boost of 20 times using XTS. These code has been adopted from OpenSSL project in collaboration with the original author (Andy Polyakov <appro@openssl.org>). Signed-off-by: Leonidas S. Barbosa <leosilva@linux.vnet.ibm.com> Signed-off-by: Paulo Flabiano Smorigo <pfsmorigo@linux.vnet.ibm.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
mariux64 · Jul 19, 2016 · 11c6e16 · 11c6e16
1 parent 5c56233
commit 11c6e16
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Showing 2 changed files with 1,867 additions and 2 deletions.
diff --git a/drivers/crypto/vmx/aesp8-ppc.h b/drivers/crypto/vmx/aesp8-ppc.h
@@ -19,3 +19,7 @@ void aes_p8_cbc_encrypt(const u8 *in, u8 *out, size_t len,
 void aes_p8_ctr32_encrypt_blocks(const u8 *in, u8 *out,
 				 size_t len, const struct aes_key *key,
 				 const u8 *iv);
+void aes_p8_xts_encrypt(const u8 *in, u8 *out, size_t len,
+			const struct aes_key *key1, const struct aes_key *key2, u8 *iv);
+void aes_p8_xts_decrypt(const u8 *in, u8 *out, size_t len,
+			const struct aes_key *key1, const struct aes_key *key2, u8 *iv);