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- #ifndef _IPXE_SHA1_H
- #define _IPXE_SHA1_H
-
- /** @file
- *
- * SHA-1 algorithm
- *
- */
-
- FILE_LICENCE ( GPL2_OR_LATER );
-
- #include <stdint.h>
- #include <ipxe/crypto.h>
-
- /** An SHA-1 digest */
- struct sha1_digest {
- /** Hash output */
- uint32_t h[5];
- };
-
- /** An SHA-1 data block */
- union sha1_block {
- /** Raw bytes */
- uint8_t byte[64];
- /** Raw dwords */
- uint32_t dword[16];
- /** Final block structure */
- struct {
- /** Padding */
- uint8_t pad[56];
- /** Length in bits */
- uint64_t len;
- } final;
- };
-
- /** SHA-1 digest and data block
- *
- * The order of fields within this structure is designed to minimise
- * code size.
- */
- struct sha1_digest_data {
- /** Digest of data already processed */
- struct sha1_digest digest;
- /** Accumulated data */
- union sha1_block data;
- } __attribute__ (( packed ));
-
- /** SHA-1 digest and data block */
- union sha1_digest_data_dwords {
- /** Digest and data block */
- struct sha1_digest_data dd;
- /** Raw dwords */
- uint32_t dword[ sizeof ( struct sha1_digest_data ) /
- sizeof ( uint32_t ) ];
- };
-
- /** An SHA-1 context */
- struct sha1_context {
- /** Amount of accumulated data */
- size_t len;
- /** Digest and accumulated data */
- union sha1_digest_data_dwords ddd;
- } __attribute__ (( packed ));
-
- /** SHA-1 context size */
- #define SHA1_CTX_SIZE sizeof ( struct sha1_context )
-
- /** SHA-1 digest size */
- #define SHA1_DIGEST_SIZE sizeof ( struct sha1_digest )
-
- extern struct digest_algorithm sha1_algorithm;
-
- extern void prf_sha1 ( const void *key, size_t key_len, const char *label,
- const void *data, size_t data_len, void *prf,
- size_t prf_len );
- extern void pbkdf2_sha1 ( const void *passphrase, size_t pass_len,
- const void *salt, size_t salt_len,
- int iterations, void *key, size_t key_len );
-
- #endif /* _IPXE_SHA1_H */
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