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authorDimitri John Ledkov <xnox@ubuntu.com>2017-07-31 14:54:24 +0100
committerDimitri John Ledkov <xnox@ubuntu.com>2017-07-31 14:54:24 +0100
commit6a0440391da7a99ffab94ccc66264af9b5f3ce34 (patch)
tree1c7cf4f07b08c4965ab19819ebce367be16fb980 /tests/sha.h
parent5f2e2384443a09e3f1fec71940e9e32b70789102 (diff)
New upstream release.
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+/**************************** sha.h ****************************/
+/***************** See RFC 6234 for details. *******************/
+/*
+ Copyright (c) 2011 IETF Trust and the persons identified as
+ authors of the code. All rights reserved.
+
+ Redistribution and use in source and binary forms, with or
+ without modification, are permitted provided that the following
+ conditions are met:
+
+ - Redistributions of source code must retain the above
+ copyright notice, this list of conditions and
+ the following disclaimer.
+
+ - Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following
+ disclaimer in the documentation and/or other materials provided
+ with the distribution.
+
+ - Neither the name of Internet Society, IETF or IETF Trust, nor
+ the names of specific contributors, may be used to endorse or
+ promote products derived from this software without specific
+ prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+#ifndef _SHA_H_
+#define _SHA_H_
+
+/*
+ * Description:
+ * This file implements the Secure Hash Algorithms
+ * as defined in the U.S. National Institute of Standards
+ * and Technology Federal Information Processing Standards
+ * Publication (FIPS PUB) 180-3 published in October 2008
+ * and formerly defined in its predecessors, FIPS PUB 180-1
+ * and FIP PUB 180-2.
+ *
+ * A combined document showing all algorithms is available at
+ * http://csrc.nist.gov/publications/fips/
+ * fips180-3/fips180-3_final.pdf
+ *
+ * The five hashes are defined in these sizes:
+ * SHA-1 20 byte / 160 bit
+ * SHA-224 28 byte / 224 bit
+ * SHA-256 32 byte / 256 bit
+ * SHA-384 48 byte / 384 bit
+ * SHA-512 64 byte / 512 bit
+ *
+ * Compilation Note:
+ * These files may be compiled with two options:
+ * USE_32BIT_ONLY - use 32-bit arithmetic only, for systems
+ * without 64-bit integers
+ *
+ * USE_MODIFIED_MACROS - use alternate form of the SHA_Ch()
+ * and SHA_Maj() macros that are equivalent
+ * and potentially faster on many systems
+ *
+ */
+
+#include <stdint.h>
+/*
+ * If you do not have the ISO standard stdint.h header file, then you
+ * must typedef the following:
+ * name meaning
+ * uint64_t unsigned 64-bit integer
+ * uint32_t unsigned 32-bit integer
+ * uint8_t unsigned 8-bit integer (i.e., unsigned char)
+ * int_least16_t integer of >= 16 bits
+ *
+ * See stdint-example.h
+ */
+
+#ifndef _SHA_enum_
+#define _SHA_enum_
+/*
+ * All SHA functions return one of these values.
+ */
+enum {
+ shaSuccess = 0,
+ shaNull, /* Null pointer parameter */
+ shaInputTooLong, /* input data too long */
+ shaStateError, /* called Input after FinalBits or Result */
+ shaBadParam /* passed a bad parameter */
+};
+#endif /* _SHA_enum_ */
+
+/*
+ * These constants hold size information for each of the SHA
+ * hashing operations
+ */
+enum {
+ SHA1_Message_Block_Size = 64, SHA224_Message_Block_Size = 64,
+ SHA256_Message_Block_Size = 64, SHA384_Message_Block_Size = 128,
+ SHA512_Message_Block_Size = 128,
+ USHA_Max_Message_Block_Size = SHA512_Message_Block_Size,
+
+ SHA1HashSize = 20, SHA224HashSize = 28, SHA256HashSize = 32,
+ SHA384HashSize = 48, SHA512HashSize = 64,
+ USHAMaxHashSize = SHA512HashSize,
+
+ SHA1HashSizeBits = 160, SHA224HashSizeBits = 224,
+ SHA256HashSizeBits = 256, SHA384HashSizeBits = 384,
+ SHA512HashSizeBits = 512, USHAMaxHashSizeBits = SHA512HashSizeBits
+};
+
+/*
+ * These constants are used in the USHA (Unified SHA) functions.
+ */
+typedef enum SHAversion {
+ SHA1, SHA224, SHA256, SHA384, SHA512
+} SHAversion;
+
+/*
+ * This structure will hold context information for the SHA-1
+ * hashing operation.
+ */
+typedef struct SHA1Context {
+ uint32_t Intermediate_Hash[SHA1HashSize/4]; /* Message Digest */
+
+ uint32_t Length_High; /* Message length in bits */
+ uint32_t Length_Low; /* Message length in bits */
+
+ int_least16_t Message_Block_Index; /* Message_Block array index */
+ /* 512-bit message blocks */
+ uint8_t Message_Block[SHA1_Message_Block_Size];
+
+ int Computed; /* Is the hash computed? */
+ int Corrupted; /* Cumulative corruption code */
+} SHA1Context;
+
+/*
+ * This structure will hold context information for the SHA-256
+ * hashing operation.
+ */
+typedef struct SHA256Context {
+ uint32_t Intermediate_Hash[SHA256HashSize/4]; /* Message Digest */
+
+ uint32_t Length_High; /* Message length in bits */
+ uint32_t Length_Low; /* Message length in bits */
+
+ int_least16_t Message_Block_Index; /* Message_Block array index */
+ /* 512-bit message blocks */
+ uint8_t Message_Block[SHA256_Message_Block_Size];
+
+ int Computed; /* Is the hash computed? */
+ int Corrupted; /* Cumulative corruption code */
+} SHA256Context;
+
+/*
+ * This structure will hold context information for the SHA-512
+ * hashing operation.
+ */
+typedef struct SHA512Context {
+#ifdef USE_32BIT_ONLY
+ uint32_t Intermediate_Hash[SHA512HashSize/4]; /* Message Digest */
+ uint32_t Length[4]; /* Message length in bits */
+#else /* !USE_32BIT_ONLY */
+ uint64_t Intermediate_Hash[SHA512HashSize/8]; /* Message Digest */
+ uint64_t Length_High, Length_Low; /* Message length in bits */
+#endif /* USE_32BIT_ONLY */
+
+ int_least16_t Message_Block_Index; /* Message_Block array index */
+ /* 1024-bit message blocks */
+ uint8_t Message_Block[SHA512_Message_Block_Size];
+
+ int Computed; /* Is the hash computed?*/
+ int Corrupted; /* Cumulative corruption code */
+} SHA512Context;
+
+/*
+ * This structure will hold context information for the SHA-224
+ * hashing operation. It uses the SHA-256 structure for computation.
+ */
+typedef struct SHA256Context SHA224Context;
+
+/*
+ * This structure will hold context information for the SHA-384
+ * hashing operation. It uses the SHA-512 structure for computation.
+ */
+typedef struct SHA512Context SHA384Context;
+
+/*
+ * This structure holds context information for all SHA
+ * hashing operations.
+ */
+typedef struct USHAContext {
+ int whichSha; /* which SHA is being used */
+ union {
+ SHA1Context sha1Context;
+ SHA224Context sha224Context; SHA256Context sha256Context;
+ SHA384Context sha384Context; SHA512Context sha512Context;
+ } ctx;
+} USHAContext;
+
+/*
+ * This structure will hold context information for the HMAC
+ * keyed-hashing operation.
+ */
+typedef struct HMACContext {
+ int whichSha; /* which SHA is being used */
+ int hashSize; /* hash size of SHA being used */
+ int blockSize; /* block size of SHA being used */
+ USHAContext shaContext; /* SHA context */
+ unsigned char k_opad[USHA_Max_Message_Block_Size];
+ /* outer padding - key XORd with opad */
+ int Computed; /* Is the MAC computed? */
+ int Corrupted; /* Cumulative corruption code */
+
+} HMACContext;
+
+/*
+ * This structure will hold context information for the HKDF
+ * extract-and-expand Key Derivation Functions.
+ */
+typedef struct HKDFContext {
+ int whichSha; /* which SHA is being used */
+ HMACContext hmacContext;
+ int hashSize; /* hash size of SHA being used */
+ unsigned char prk[USHAMaxHashSize];
+ /* pseudo-random key - output of hkdfInput */
+ int Computed; /* Is the key material computed? */
+ int Corrupted; /* Cumulative corruption code */
+} HKDFContext;
+
+/*
+ * Function Prototypes
+ */
+
+/* SHA-1 */
+extern int SHA1Reset(SHA1Context *);
+extern int SHA1Input(SHA1Context *, const uint8_t *bytes,
+ unsigned int bytecount);
+extern int SHA1FinalBits(SHA1Context *, uint8_t bits,
+ unsigned int bit_count);
+extern int SHA1Result(SHA1Context *,
+ uint8_t Message_Digest[SHA1HashSize]);
+
+/* SHA-224 */
+extern int SHA224Reset(SHA224Context *);
+extern int SHA224Input(SHA224Context *, const uint8_t *bytes,
+ unsigned int bytecount);
+extern int SHA224FinalBits(SHA224Context *, uint8_t bits,
+ unsigned int bit_count);
+extern int SHA224Result(SHA224Context *,
+ uint8_t Message_Digest[SHA224HashSize]);
+
+/* SHA-256 */
+extern int SHA256Reset(SHA256Context *);
+extern int SHA256Input(SHA256Context *, const uint8_t *bytes,
+ unsigned int bytecount);
+extern int SHA256FinalBits(SHA256Context *, uint8_t bits,
+ unsigned int bit_count);
+extern int SHA256Result(SHA256Context *,
+ uint8_t Message_Digest[SHA256HashSize]);
+
+/* SHA-384 */
+extern int SHA384Reset(SHA384Context *);
+extern int SHA384Input(SHA384Context *, const uint8_t *bytes,
+ unsigned int bytecount);
+extern int SHA384FinalBits(SHA384Context *, uint8_t bits,
+ unsigned int bit_count);
+extern int SHA384Result(SHA384Context *,
+ uint8_t Message_Digest[SHA384HashSize]);
+
+/* SHA-512 */
+extern int SHA512Reset(SHA512Context *);
+extern int SHA512Input(SHA512Context *, const uint8_t *bytes,
+ unsigned int bytecount);
+extern int SHA512FinalBits(SHA512Context *, uint8_t bits,
+ unsigned int bit_count);
+extern int SHA512Result(SHA512Context *,
+ uint8_t Message_Digest[SHA512HashSize]);
+
+/* Unified SHA functions, chosen by whichSha */
+extern int USHAReset(USHAContext *context, SHAversion whichSha);
+extern int USHAInput(USHAContext *context,
+ const uint8_t *bytes, unsigned int bytecount);
+extern int USHAFinalBits(USHAContext *context,
+ uint8_t bits, unsigned int bit_count);
+extern int USHAResult(USHAContext *context,
+ uint8_t Message_Digest[USHAMaxHashSize]);
+extern int USHABlockSize(enum SHAversion whichSha);
+extern int USHAHashSize(enum SHAversion whichSha);
+extern int USHAHashSizeBits(enum SHAversion whichSha);
+extern const char *USHAHashName(enum SHAversion whichSha);
+
+/*
+ * HMAC Keyed-Hashing for Message Authentication, RFC 2104,
+ * for all SHAs.
+ * This interface allows a fixed-length text input to be used.
+ */
+extern int hmac(SHAversion whichSha, /* which SHA algorithm to use */
+ const unsigned char *text, /* pointer to data stream */
+ int text_len, /* length of data stream */
+ const unsigned char *key, /* pointer to authentication key */
+ int key_len, /* length of authentication key */
+ uint8_t digest[USHAMaxHashSize]); /* caller digest to fill in */
+
+/*
+ * HMAC Keyed-Hashing for Message Authentication, RFC 2104,
+ * for all SHAs.
+ * This interface allows any length of text input to be used.
+ */
+extern int hmacReset(HMACContext *context, enum SHAversion whichSha,
+ const unsigned char *key, int key_len);
+extern int hmacInput(HMACContext *context, const unsigned char *text,
+ int text_len);
+extern int hmacFinalBits(HMACContext *context, uint8_t bits,
+ unsigned int bit_count);
+extern int hmacResult(HMACContext *context,
+ uint8_t digest[USHAMaxHashSize]);
+
+/*
+ * HKDF HMAC-based Extract-and-Expand Key Derivation Function,
+ * RFC 5869, for all SHAs.
+ */
+extern int hkdf(SHAversion whichSha, const unsigned char *salt,
+ int salt_len, const unsigned char *ikm, int ikm_len,
+ const unsigned char *info, int info_len,
+ uint8_t okm[ ], int okm_len);
+extern int hkdfExtract(SHAversion whichSha, const unsigned char *salt,
+ int salt_len, const unsigned char *ikm,
+ int ikm_len, uint8_t prk[USHAMaxHashSize]);
+extern int hkdfExpand(SHAversion whichSha, const uint8_t prk[ ],
+ int prk_len, const unsigned char *info,
+ int info_len, uint8_t okm[ ], int okm_len);
+
+/*
+ * HKDF HMAC-based Extract-and-Expand Key Derivation Function,
+ * RFC 5869, for all SHAs.
+ * This interface allows any length of text input to be used.
+ */
+extern int hkdfReset(HKDFContext *context, enum SHAversion whichSha,
+ const unsigned char *salt, int salt_len);
+extern int hkdfInput(HKDFContext *context, const unsigned char *ikm,
+ int ikm_len);
+extern int hkdfFinalBits(HKDFContext *context, uint8_t ikm_bits,
+ unsigned int ikm_bit_count);
+extern int hkdfResult(HKDFContext *context,
+ uint8_t prk[USHAMaxHashSize],
+ const unsigned char *info, int info_len,
+ uint8_t okm[USHAMaxHashSize], int okm_len);
+#endif /* _SHA_H_ */