diff options
Diffstat (limited to 'qemu/roms/ipxe/src/crypto/sha512.c')
-rw-r--r-- | qemu/roms/ipxe/src/crypto/sha512.c | 303 |
1 files changed, 0 insertions, 303 deletions
diff --git a/qemu/roms/ipxe/src/crypto/sha512.c b/qemu/roms/ipxe/src/crypto/sha512.c deleted file mode 100644 index 814f44563..000000000 --- a/qemu/roms/ipxe/src/crypto/sha512.c +++ /dev/null @@ -1,303 +0,0 @@ -/* - * Copyright (C) 2015 Michael Brown <mbrown@fensystems.co.uk>. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - * - * You can also choose to distribute this program under the terms of - * the Unmodified Binary Distribution Licence (as given in the file - * COPYING.UBDL), provided that you have satisfied its requirements. - */ - -FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); - -/** @file - * - * SHA-512 algorithm - * - */ - -#include <stdint.h> -#include <string.h> -#include <byteswap.h> -#include <assert.h> -#include <ipxe/rotate.h> -#include <ipxe/crypto.h> -#include <ipxe/asn1.h> -#include <ipxe/sha512.h> - -/** SHA-512 variables */ -struct sha512_variables { - /* This layout matches that of struct sha512_digest_data, - * allowing for efficient endianness-conversion, - */ - uint64_t a; - uint64_t b; - uint64_t c; - uint64_t d; - uint64_t e; - uint64_t f; - uint64_t g; - uint64_t h; - uint64_t w[SHA512_ROUNDS]; -} __attribute__ (( packed )); - -/** SHA-512 constants */ -static const uint64_t k[SHA512_ROUNDS] = { - 0x428a2f98d728ae22ULL, 0x7137449123ef65cdULL, 0xb5c0fbcfec4d3b2fULL, - 0xe9b5dba58189dbbcULL, 0x3956c25bf348b538ULL, 0x59f111f1b605d019ULL, - 0x923f82a4af194f9bULL, 0xab1c5ed5da6d8118ULL, 0xd807aa98a3030242ULL, - 0x12835b0145706fbeULL, 0x243185be4ee4b28cULL, 0x550c7dc3d5ffb4e2ULL, - 0x72be5d74f27b896fULL, 0x80deb1fe3b1696b1ULL, 0x9bdc06a725c71235ULL, - 0xc19bf174cf692694ULL, 0xe49b69c19ef14ad2ULL, 0xefbe4786384f25e3ULL, - 0x0fc19dc68b8cd5b5ULL, 0x240ca1cc77ac9c65ULL, 0x2de92c6f592b0275ULL, - 0x4a7484aa6ea6e483ULL, 0x5cb0a9dcbd41fbd4ULL, 0x76f988da831153b5ULL, - 0x983e5152ee66dfabULL, 0xa831c66d2db43210ULL, 0xb00327c898fb213fULL, - 0xbf597fc7beef0ee4ULL, 0xc6e00bf33da88fc2ULL, 0xd5a79147930aa725ULL, - 0x06ca6351e003826fULL, 0x142929670a0e6e70ULL, 0x27b70a8546d22ffcULL, - 0x2e1b21385c26c926ULL, 0x4d2c6dfc5ac42aedULL, 0x53380d139d95b3dfULL, - 0x650a73548baf63deULL, 0x766a0abb3c77b2a8ULL, 0x81c2c92e47edaee6ULL, - 0x92722c851482353bULL, 0xa2bfe8a14cf10364ULL, 0xa81a664bbc423001ULL, - 0xc24b8b70d0f89791ULL, 0xc76c51a30654be30ULL, 0xd192e819d6ef5218ULL, - 0xd69906245565a910ULL, 0xf40e35855771202aULL, 0x106aa07032bbd1b8ULL, - 0x19a4c116b8d2d0c8ULL, 0x1e376c085141ab53ULL, 0x2748774cdf8eeb99ULL, - 0x34b0bcb5e19b48a8ULL, 0x391c0cb3c5c95a63ULL, 0x4ed8aa4ae3418acbULL, - 0x5b9cca4f7763e373ULL, 0x682e6ff3d6b2b8a3ULL, 0x748f82ee5defb2fcULL, - 0x78a5636f43172f60ULL, 0x84c87814a1f0ab72ULL, 0x8cc702081a6439ecULL, - 0x90befffa23631e28ULL, 0xa4506cebde82bde9ULL, 0xbef9a3f7b2c67915ULL, - 0xc67178f2e372532bULL, 0xca273eceea26619cULL, 0xd186b8c721c0c207ULL, - 0xeada7dd6cde0eb1eULL, 0xf57d4f7fee6ed178ULL, 0x06f067aa72176fbaULL, - 0x0a637dc5a2c898a6ULL, 0x113f9804bef90daeULL, 0x1b710b35131c471bULL, - 0x28db77f523047d84ULL, 0x32caab7b40c72493ULL, 0x3c9ebe0a15c9bebcULL, - 0x431d67c49c100d4cULL, 0x4cc5d4becb3e42b6ULL, 0x597f299cfc657e2aULL, - 0x5fcb6fab3ad6faecULL, 0x6c44198c4a475817ULL -}; - -/** SHA-512 initial digest values */ -static const struct sha512_digest sha512_init_digest = { - .h = { - cpu_to_be64 ( 0x6a09e667f3bcc908ULL ), - cpu_to_be64 ( 0xbb67ae8584caa73bULL ), - cpu_to_be64 ( 0x3c6ef372fe94f82bULL ), - cpu_to_be64 ( 0xa54ff53a5f1d36f1ULL ), - cpu_to_be64 ( 0x510e527fade682d1ULL ), - cpu_to_be64 ( 0x9b05688c2b3e6c1fULL ), - cpu_to_be64 ( 0x1f83d9abfb41bd6bULL ), - cpu_to_be64 ( 0x5be0cd19137e2179ULL ), - }, -}; - -/** - * Initialise SHA-512 family algorithm - * - * @v context SHA-512 context - * @v init Initial digest values - * @v digestsize Digest size - */ -void sha512_family_init ( struct sha512_context *context, - const struct sha512_digest *init, - size_t digestsize ) { - - context->len = 0; - context->digestsize = digestsize; - memcpy ( &context->ddq.dd.digest, init, - sizeof ( context->ddq.dd.digest ) ); -} - -/** - * Initialise SHA-512 algorithm - * - * @v ctx SHA-512 context - */ -static void sha512_init ( void *ctx ) { - struct sha512_context *context = ctx; - - sha512_family_init ( context, &sha512_init_digest, - sizeof ( struct sha512_digest ) ); -} - -/** - * Calculate SHA-512 digest of accumulated data - * - * @v context SHA-512 context - */ -static void sha512_digest ( struct sha512_context *context ) { - union { - union sha512_digest_data_qwords ddq; - struct sha512_variables v; - } u; - uint64_t *a = &u.v.a; - uint64_t *b = &u.v.b; - uint64_t *c = &u.v.c; - uint64_t *d = &u.v.d; - uint64_t *e = &u.v.e; - uint64_t *f = &u.v.f; - uint64_t *g = &u.v.g; - uint64_t *h = &u.v.h; - uint64_t *w = u.v.w; - uint64_t s0; - uint64_t s1; - uint64_t maj; - uint64_t t1; - uint64_t t2; - uint64_t ch; - unsigned int i; - - /* Sanity checks */ - assert ( ( context->len % sizeof ( context->ddq.dd.data ) ) == 0 ); - linker_assert ( &u.ddq.dd.digest.h[0] == a, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.digest.h[1] == b, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.digest.h[2] == c, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.digest.h[3] == d, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.digest.h[4] == e, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.digest.h[5] == f, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.digest.h[6] == g, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.digest.h[7] == h, sha512_bad_layout ); - linker_assert ( &u.ddq.dd.data.qword[0] == w, sha512_bad_layout ); - - DBGC ( context, "SHA512 digesting:\n" ); - DBGC_HDA ( context, 0, &context->ddq.dd.digest, - sizeof ( context->ddq.dd.digest ) ); - DBGC_HDA ( context, context->len, &context->ddq.dd.data, - sizeof ( context->ddq.dd.data ) ); - - /* Convert h[0..7] to host-endian, and initialise a, b, c, d, - * e, f, g, h, and w[0..15] - */ - for ( i = 0 ; i < ( sizeof ( u.ddq.qword ) / - sizeof ( u.ddq.qword[0] ) ) ; i++ ) { - be64_to_cpus ( &context->ddq.qword[i] ); - u.ddq.qword[i] = context->ddq.qword[i]; - } - - /* Initialise w[16..79] */ - for ( i = 16 ; i < SHA512_ROUNDS ; i++ ) { - s0 = ( ror64 ( w[i-15], 1 ) ^ ror64 ( w[i-15], 8 ) ^ - ( w[i-15] >> 7 ) ); - s1 = ( ror64 ( w[i-2], 19 ) ^ ror64 ( w[i-2], 61 ) ^ - ( w[i-2] >> 6 ) ); - w[i] = ( w[i-16] + s0 + w[i-7] + s1 ); - } - - /* Main loop */ - for ( i = 0 ; i < SHA512_ROUNDS ; i++ ) { - s0 = ( ror64 ( *a, 28 ) ^ ror64 ( *a, 34 ) ^ ror64 ( *a, 39 ) ); - maj = ( ( *a & *b ) ^ ( *a & *c ) ^ ( *b & *c ) ); - t2 = ( s0 + maj ); - s1 = ( ror64 ( *e, 14 ) ^ ror64 ( *e, 18 ) ^ ror64 ( *e, 41 ) ); - ch = ( ( *e & *f ) ^ ( (~*e) & *g ) ); - t1 = ( *h + s1 + ch + k[i] + w[i] ); - *h = *g; - *g = *f; - *f = *e; - *e = ( *d + t1 ); - *d = *c; - *c = *b; - *b = *a; - *a = ( t1 + t2 ); - DBGC2 ( context, "%2d : %016llx %016llx %016llx %016llx " - "%016llx %016llx %016llx %016llx\n", - i, *a, *b, *c, *d, *e, *f, *g, *h ); - } - - /* Add chunk to hash and convert back to big-endian */ - for ( i = 0 ; i < 8 ; i++ ) { - context->ddq.dd.digest.h[i] = - cpu_to_be64 ( context->ddq.dd.digest.h[i] + - u.ddq.dd.digest.h[i] ); - } - - DBGC ( context, "SHA512 digested:\n" ); - DBGC_HDA ( context, 0, &context->ddq.dd.digest, - sizeof ( context->ddq.dd.digest ) ); -} - -/** - * Accumulate data with SHA-512 algorithm - * - * @v ctx SHA-512 context - * @v data Data - * @v len Length of data - */ -void sha512_update ( void *ctx, const void *data, size_t len ) { - struct sha512_context *context = ctx; - const uint8_t *byte = data; - size_t offset; - - /* Accumulate data a byte at a time, performing the digest - * whenever we fill the data buffer - */ - while ( len-- ) { - offset = ( context->len % sizeof ( context->ddq.dd.data ) ); - context->ddq.dd.data.byte[offset] = *(byte++); - context->len++; - if ( ( context->len % sizeof ( context->ddq.dd.data ) ) == 0 ) - sha512_digest ( context ); - } -} - -/** - * Generate SHA-512 digest - * - * @v ctx SHA-512 context - * @v out Output buffer - */ -void sha512_final ( void *ctx, void *out ) { - struct sha512_context *context = ctx; - uint64_t len_bits_hi; - uint64_t len_bits_lo; - uint8_t pad; - - /* Record length before pre-processing */ - len_bits_hi = 0; - len_bits_lo = cpu_to_be64 ( ( ( uint64_t ) context->len ) * 8 ); - - /* Pad with a single "1" bit followed by as many "0" bits as required */ - pad = 0x80; - do { - sha512_update ( ctx, &pad, sizeof ( pad ) ); - pad = 0x00; - } while ( ( context->len % sizeof ( context->ddq.dd.data ) ) != - offsetof ( typeof ( context->ddq.dd.data ), final.len_hi ) ); - - /* Append length (in bits) */ - sha512_update ( ctx, &len_bits_hi, sizeof ( len_bits_hi ) ); - sha512_update ( ctx, &len_bits_lo, sizeof ( len_bits_lo ) ); - assert ( ( context->len % sizeof ( context->ddq.dd.data ) ) == 0 ); - - /* Copy out final digest */ - memcpy ( out, &context->ddq.dd.digest, context->digestsize ); -} - -/** SHA-512 algorithm */ -struct digest_algorithm sha512_algorithm = { - .name = "sha512", - .ctxsize = sizeof ( struct sha512_context ), - .blocksize = sizeof ( union sha512_block ), - .digestsize = sizeof ( struct sha512_digest ), - .init = sha512_init, - .update = sha512_update, - .final = sha512_final, -}; - -/** "sha512" object identifier */ -static uint8_t oid_sha512[] = { ASN1_OID_SHA512 }; - -/** "sha512" OID-identified algorithm */ -struct asn1_algorithm oid_sha512_algorithm __asn1_algorithm = { - .name = "sha512", - .digest = &sha512_algorithm, - .oid = ASN1_OID_CURSOR ( oid_sha512 ), -}; |