Compile ccm128.c, move some structures to modes_lcl.h add prototypes.

crypto/modes/Makefile

@@ -21,9 +21,10 @@ TEST=
 APPS=
 
 LIB=$(TOP)/libcrypto.a
-LIBSRC= cbc128.c ctr128.c cts128.c cfb128.c ofb128.c gcm128.c xts128.c
+LIBSRC= cbc128.c ctr128.c cts128.c cfb128.c ofb128.c gcm128.c \
+	ccm128.c xts128.c
 LIBOBJ= cbc128.o ctr128.o cts128.o cfb128.o ofb128.o gcm128.o \
-	xts128.o $(MODES_ASM_OBJ)
+	ccm128.o xts128.o $(MODES_ASM_OBJ)
 
 SRC= $(LIBSRC)
 

crypto/modes/ccm128.c

@@ -58,13 +58,6 @@
 #endif
 #include <assert.h>
 
-typedef struct {
-	union { u64 u[2]; u8 c[16]; } nonce, cmac;
-	u64 blocks;
-	block128_f block;
-	void *key;
-} CCM128_CONTEXT;
-
 /* First you setup M and L parameters and pass the key schedule */
 void CRYPTO_ccm128_init(CCM128_CONTEXT *ctx,
 	unsigned int M,unsigned int L,void *key,block128_f block)
@@ -251,7 +244,7 @@ int CRYPTO_ccm128_decrypt(CCM128_CONTEXT *ctx,
 	size_t		n;
 	unsigned int	i,L;
 	unsigned char	flags0 = ctx->nonce.c[0];
-	block128_f	block;
+	block128_f	block = ctx->block;
 	union { u64 u[2]; u8 c[16]; } scratch;
 
 	if (!(flags0&0x40))

crypto/modes/modes.h

@@ -105,6 +105,22 @@ int  CRYPTO_gcm128_finish(GCM128_CONTEXT *ctx,const unsigned char *tag,
 void  CRYPTO_gcm128_tag(GCM128_CONTEXT *ctx, unsigned char *tag, size_t len);
 void CRYPTO_gcm128_release(GCM128_CONTEXT *ctx);
 
+typedef struct ccm128_context CCM128_CONTEXT;
+
+void CRYPTO_ccm128_init(CCM128_CONTEXT *ctx,
+	unsigned int M,unsigned int L,void *key,block128_f block);
+int CRYPTO_ccm128_setiv(CCM128_CONTEXT *ctx,
+	const unsigned char *nonce,size_t nlen,size_t mlen);
+void CRYPTO_ccm128_aad(CCM128_CONTEXT *ctx,
+	const unsigned char *aad,size_t alen);
+int CRYPTO_ccm128_encrypt(CCM128_CONTEXT *ctx,
+	const unsigned char *inp, unsigned char *out,
+	size_t len);
+int CRYPTO_ccm128_decrypt(CCM128_CONTEXT *ctx,
+	const unsigned char *inp, unsigned char *out,
+	size_t len);
+size_t CRYPTO_ccm128_tag(CCM128_CONTEXT *ctx,unsigned char *tag,size_t len);
+
 typedef struct xts128_context XTS128_CONTEXT;
 
 int CRYPTO_xts128_encrypt(const XTS128_CONTEXT *ctx, const unsigned char *iv,

crypto/modes/modes_lcl.h

@@ -122,3 +122,10 @@ struct xts128_context {
 	block128_f block1,block2;
 };
 
+struct ccm128_context {
+	union { u64 u[2]; u8 c[16]; } nonce, cmac;
+	u64 blocks;
+	block128_f block;
+	void *key;
+};
+