diff options
Diffstat (limited to 'src/crypto/internal/boring/sha.go')
| -rw-r--r-- | src/crypto/internal/boring/sha.go | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/src/crypto/internal/boring/sha.go b/src/crypto/internal/boring/sha.go new file mode 100644 index 0000000000..b8e6e57684 --- /dev/null +++ b/src/crypto/internal/boring/sha.go @@ -0,0 +1,177 @@ +// Copyright 2017 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build linux,amd64 +// +build !android +// +build !cmd_go_bootstrap +// +build !msan + +package boring + +// #include "goboringcrypto.h" +import "C" +import ( + "hash" + "unsafe" +) + +// NewSHA1 returns a new SHA1 hash. +func NewSHA1() hash.Hash { + h := new(sha1Hash) + h.Reset() + return h +} + +type sha1Hash struct { + ctx C.GO_SHA_CTX + out [20]byte +} + +func (h *sha1Hash) Reset() { C._goboringcrypto_SHA1_Init(&h.ctx) } +func (h *sha1Hash) Size() int { return 20 } +func (h *sha1Hash) BlockSize() int { return 64 } +func (h *sha1Hash) Sum(in []byte) []byte { return append(in, h.sum()...) } + +func (h *sha1Hash) Write(p []byte) (int, error) { + if len(p) > 0 && C._goboringcrypto_SHA1_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 { + panic("boringcrypto: SHA1_Update failed") + } + return len(p), nil +} + +func (h0 *sha1Hash) sum() []byte { + h := *h0 // make copy so future Write+Sum is valid + if C._goboringcrypto_SHA1_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 { + panic("boringcrypto: SHA1_Final failed") + } + return h.out[:] +} + +// NewSHA224 returns a new SHA224 hash. +func NewSHA224() hash.Hash { + h := new(sha224Hash) + h.Reset() + return h +} + +type sha224Hash struct { + ctx C.GO_SHA256_CTX + out [224 / 8]byte +} + +func (h *sha224Hash) Reset() { C._goboringcrypto_SHA224_Init(&h.ctx) } +func (h *sha224Hash) Size() int { return 224 / 8 } +func (h *sha224Hash) BlockSize() int { return 64 } +func (h *sha224Hash) Sum(in []byte) []byte { return append(in, h.sum()...) } + +func (h *sha224Hash) Write(p []byte) (int, error) { + if len(p) > 0 && C._goboringcrypto_SHA224_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 { + panic("boringcrypto: SHA224_Update failed") + } + return len(p), nil +} + +func (h0 *sha224Hash) sum() []byte { + h := *h0 // make copy so future Write+Sum is valid + if C._goboringcrypto_SHA224_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 { + panic("boringcrypto: SHA224_Final failed") + } + return h.out[:] +} + +// NewSHA256 returns a new SHA256 hash. +func NewSHA256() hash.Hash { + h := new(sha256Hash) + h.Reset() + return h +} + +type sha256Hash struct { + ctx C.GO_SHA256_CTX + out [256 / 8]byte +} + +func (h *sha256Hash) Reset() { C._goboringcrypto_SHA256_Init(&h.ctx) } +func (h *sha256Hash) Size() int { return 256 / 8 } +func (h *sha256Hash) BlockSize() int { return 64 } +func (h *sha256Hash) Sum(in []byte) []byte { return append(in, h.sum()...) } + +func (h *sha256Hash) Write(p []byte) (int, error) { + if len(p) > 0 && C._goboringcrypto_SHA256_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 { + panic("boringcrypto: SHA256_Update failed") + } + return len(p), nil +} + +func (h0 *sha256Hash) sum() []byte { + h := *h0 // make copy so future Write+Sum is valid + if C._goboringcrypto_SHA256_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 { + panic("boringcrypto: SHA256_Final failed") + } + return h.out[:] +} + +// NewSHA384 returns a new SHA384 hash. +func NewSHA384() hash.Hash { + h := new(sha384Hash) + h.Reset() + return h +} + +type sha384Hash struct { + ctx C.GO_SHA512_CTX + out [384 / 8]byte +} + +func (h *sha384Hash) Reset() { C._goboringcrypto_SHA384_Init(&h.ctx) } +func (h *sha384Hash) Size() int { return 384 / 8 } +func (h *sha384Hash) BlockSize() int { return 128 } +func (h *sha384Hash) Sum(in []byte) []byte { return append(in, h.sum()...) } + +func (h *sha384Hash) Write(p []byte) (int, error) { + if len(p) > 0 && C._goboringcrypto_SHA384_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 { + panic("boringcrypto: SHA384_Update failed") + } + return len(p), nil +} + +func (h0 *sha384Hash) sum() []byte { + h := *h0 // make copy so future Write+Sum is valid + if C._goboringcrypto_SHA384_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 { + panic("boringcrypto: SHA384_Final failed") + } + return h.out[:] +} + +// NewSHA512 returns a new SHA512 hash. +func NewSHA512() hash.Hash { + h := new(sha512Hash) + h.Reset() + return h +} + +type sha512Hash struct { + ctx C.GO_SHA512_CTX + out [512 / 8]byte +} + +func (h *sha512Hash) Reset() { C._goboringcrypto_SHA512_Init(&h.ctx) } +func (h *sha512Hash) Size() int { return 512 / 8 } +func (h *sha512Hash) BlockSize() int { return 128 } +func (h *sha512Hash) Sum(in []byte) []byte { return append(in, h.sum()...) } + +func (h *sha512Hash) Write(p []byte) (int, error) { + if len(p) > 0 && C._goboringcrypto_SHA512_Update(&h.ctx, unsafe.Pointer(&p[0]), C.size_t(len(p))) == 0 { + panic("boringcrypto: SHA512_Update failed") + } + return len(p), nil +} + +func (h0 *sha512Hash) sum() []byte { + h := *h0 // make copy so future Write+Sum is valid + if C._goboringcrypto_SHA512_Final((*C.uint8_t)(unsafe.Pointer(&h.out[0])), &h.ctx) == 0 { + panic("boringcrypto: SHA512_Final failed") + } + return h.out[:] +} |