add crypto sha1, sha256, sha512

_cmptest/sha1demo/sha1.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"crypto/sha1"
+	"fmt"
+)
+
+func main() {
+	data := []byte("This page intentionally left blank.")
+	fmt.Printf("% x", sha1.Sum(data))
+}

_cmptest/sha256demo/sha256.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"crypto/sha256"
+	"fmt"
+)
+
+func main() {
+	sum := sha256.Sum256([]byte("hello world\n"))
+	fmt.Printf("%x", sum)
+}

_cmptest/sha512demo/sha512.go

@@ -0,0 +1,11 @@
+package main
+
+import (
+	"crypto/sha512"
+	"fmt"
+)
+
+func main() {
+	sum := sha512.Sum512([]byte("hello world\n"))
+	fmt.Printf("%x", sum)
+}

internal/build/build.go

@@ -758,6 +758,9 @@ type none struct{}
 
 var hasAltPkg = map[string]none{
 	"crypto/md5":               {},
+	"crypto/sha1":              {},
+	"crypto/sha256":            {},
+	"crypto/sha512":            {},
 	"crypto/rand":              {},
 	"fmt":                      {},
 	"hash/crc32":               {},

internal/lib/crypto/sha1/sha1.go

@@ -0,0 +1,53 @@
+package sha1
+
+// llgo:skipall
+
+import (
+	"hash"
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/openssl"
+)
+
+// The blocksize of SHA-1 in bytes.
+const BlockSize = 64
+
+// The size of a SHA-1 checksum in bytes.
+const Size = 20
+
+type digest struct {
+	ctx openssl.SHA_CTX
+}
+
+func (d *digest) Size() int { return Size }
+
+func (d *digest) BlockSize() int { return BlockSize }
+
+func (d *digest) Reset() {
+	d.ctx.Init()
+}
+
+func (d *digest) Write(p []byte) (nn int, err error) {
+	d.ctx.UpdateBytes(p)
+	return len(p), nil
+}
+
+func (d *digest) Sum(in []byte) []byte {
+	hash := (*[Size]byte)(c.Alloca(Size))
+	d.ctx.Final((*byte)(unsafe.Pointer(hash)))
+	return append(in, hash[:]...)
+}
+
+// New returns a new hash.Hash computing the SHA1 checksum.
+func New() hash.Hash {
+	d := new(digest)
+	d.ctx.Init()
+	return d
+}
+
+// Sum returns the SHA-1 checksum of the data.
+func Sum(data []byte) (ret [Size]byte) {
+	openssl.SHA1Bytes(data, &ret[0])
+	return
+}

internal/lib/crypto/sha256/sha224.go

@@ -0,0 +1,31 @@
+package sha256
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/openssl"
+)
+
+type digest224 struct {
+	ctx openssl.SHA224_CTX
+}
+
+func (d *digest224) Size() int { return Size224 }
+
+func (d *digest224) BlockSize() int { return BlockSize }
+
+func (d *digest224) Reset() {
+	d.ctx.Init()
+}
+
+func (d *digest224) Write(p []byte) (nn int, err error) {
+	d.ctx.UpdateBytes(p)
+	return len(p), nil
+}
+
+func (d *digest224) Sum(in []byte) []byte {
+	hash := (*[Size]byte)(c.Alloca(Size))
+	d.ctx.Final((*byte)(unsafe.Pointer(hash)))
+	return append(in, hash[:]...)
+}

internal/lib/crypto/sha256/sha256.go

@@ -0,0 +1,69 @@
+package sha256
+
+// llgo:skipall
+
+import (
+	"hash"
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/openssl"
+)
+
+// The blocksize of SHA256 and SHA224 in bytes.
+const BlockSize = 64
+
+// The size of a SHA256 checksum in bytes.
+const Size = 32
+
+// The size of a SHA224 checksum in bytes.
+const Size224 = 28
+
+type digest256 struct {
+	ctx openssl.SHA256_CTX
+}
+
+func (d *digest256) Size() int { return Size }
+
+func (d *digest256) BlockSize() int { return BlockSize }
+
+func (d *digest256) Reset() {
+	d.ctx.Init()
+}
+
+func (d *digest256) Write(p []byte) (nn int, err error) {
+	d.ctx.UpdateBytes(p)
+	return len(p), nil
+}
+
+func (d *digest256) Sum(in []byte) []byte {
+	hash := (*[Size]byte)(c.Alloca(Size))
+	d.ctx.Final((*byte)(unsafe.Pointer(hash)))
+	return append(in, hash[:]...)
+}
+
+// New returns a new hash.Hash computing the SHA256 checksum.
+func New() hash.Hash {
+	d := new(digest256)
+	d.ctx.Init()
+	return d
+}
+
+// New224 returns a new hash.Hash computing the SHA224 checksum.
+func New224() hash.Hash {
+	d := new(digest224)
+	d.ctx.Init()
+	return d
+}
+
+// Sum224 returns the SHA224 checksum of the data.
+func Sum224(data []byte) (ret [Size224]byte) {
+	openssl.SHA224Bytes(data, &ret[0])
+	return
+}
+
+// Sum256 returns the SHA256 checksum of the data.
+func Sum256(data []byte) (ret [Size]byte) {
+	openssl.SHA256Bytes(data, &ret[0])
+	return
+}

internal/lib/crypto/sha512/sha384.go

@@ -0,0 +1,31 @@
+package sha512
+
+import (
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/openssl"
+)
+
+type digest384 struct {
+	ctx openssl.SHA384_CTX
+}
+
+func (d *digest384) Size() int { return Size384 }
+
+func (d *digest384) BlockSize() int { return BlockSize }
+
+func (d *digest384) Reset() {
+	d.ctx.Init()
+}
+
+func (d *digest384) Write(p []byte) (nn int, err error) {
+	d.ctx.UpdateBytes(p)
+	return len(p), nil
+}
+
+func (d *digest384) Sum(in []byte) []byte {
+	hash := (*[Size]byte)(c.Alloca(Size))
+	d.ctx.Final((*byte)(unsafe.Pointer(hash)))
+	return append(in, hash[:]...)
+}

internal/lib/crypto/sha512/sha512.go

@@ -0,0 +1,90 @@
+package sha512
+
+// llgo:skipall
+
+import (
+	"hash"
+	"unsafe"
+
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/c/openssl"
+)
+
+const (
+	// Size is the size, in bytes, of a SHA-512 checksum.
+	Size = 64
+
+	// Size224 is the size, in bytes, of a SHA-512/224 checksum.
+	Size224 = 28
+
+	// Size256 is the size, in bytes, of a SHA-512/256 checksum.
+	Size256 = 32
+
+	// Size384 is the size, in bytes, of a SHA-384 checksum.
+	Size384 = 48
+
+	// BlockSize is the block size, in bytes, of the SHA-512/224,
+	// SHA-512/256, SHA-384 and SHA-512 hash functions.
+	BlockSize = 128
+)
+
+type digest512 struct {
+	ctx openssl.SHA512_CTX
+}
+
+func (d *digest512) Size() int { return Size }
+
+func (d *digest512) BlockSize() int { return BlockSize }
+
+func (d *digest512) Reset() {
+	d.ctx.Init()
+}
+
+func (d *digest512) Write(p []byte) (nn int, err error) {
+	d.ctx.UpdateBytes(p)
+	return len(p), nil
+}
+
+func (d *digest512) Sum(in []byte) []byte {
+	hash := (*[Size]byte)(c.Alloca(Size))
+	d.ctx.Final((*byte)(unsafe.Pointer(hash)))
+	return append(in, hash[:]...)
+}
+
+func New() hash.Hash {
+	d := new(digest512)
+	d.ctx.Init()
+	return d
+}
+
+func New384() hash.Hash {
+	d := new(digest384)
+	d.ctx.Init()
+	return d
+}
+
+func Sum384(data []byte) (ret [Size384]byte) {
+	openssl.SHA384Bytes(data, &ret[0])
+	return
+}
+
+func Sum512(data []byte) (ret [Size]byte) {
+	openssl.SHA512Bytes(data, &ret[0])
+	return
+}
+
+func New512_224() hash.Hash {
+	panic("todo: New512_224")
+}
+
+func New512_256() hash.Hash {
+	panic("todo: New512_256")
+}
+
+func Sum512_224(data []byte) [Size224]byte {
+	panic("todo: Sum512_224")
+}
+
+func Sum512_256(data []byte) [Size256]byte {
+	panic("todo: Sum512_256")
+}