Add modes/cts128.c, Ciphertext Stealing implementation.

1 files changed, 17 insertions, 0 deletions

diff --git a/crypto/modes/modes.h b/crypto/modes/modes.h
index 6315a60fc4..af8d97d795 100644
--- a/crypto/modes/modes.h
+++ b/crypto/modes/modes.h
@@ -11,6 +11,10 @@ typedef void (*block128_f)(const unsigned char in[16],
 			unsigned char out[16],
 			const void *key);
 
+typedef void (*cbc128_f)(const unsigned char *in, unsigned char *out,
+			size_t len, const void *key,
+			unsigned char ivec[16], int enc);
+
 void CRYPTO_cbc128_encrypt(const unsigned char *in, unsigned char *out,
 			size_t len, const void *key,
 			unsigned char ivec[16], block128_f block);
@@ -40,3 +44,16 @@ void CRYPTO_cfb128_1_encrypt(const unsigned char *in, unsigned char *out,
 			size_t bits, const void *key,
 			unsigned char ivec[16], int *num,
 			int enc, block128_f block);
+
+size_t CRYPTO_cts128_encrypt_block(const unsigned char *in, unsigned char *out,
+			size_t len, const void *key,
+			unsigned char ivec[16], block128_f block);
+size_t CRYPTO_cts128_encrypt(const unsigned char *in, unsigned char *out,
+			size_t len, const void *key,
+			unsigned char ivec[16], cbc128_f cbc);
+size_t CRYPTO_cts128_decrypt_block(const unsigned char *in, unsigned char *out,
+			size_t len, const void *key,
+			unsigned char ivec[16], block128_f block);
+size_t CRYPTO_cts128_decrypt(const unsigned char *in, unsigned char *out,
+			size_t len, const void *key,
+			unsigned char ivec[16], cbc128_f cbc);