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core/crypto/md5: odinfmt (NFC)
This commit is contained in:
Yawning Angel
@@ -10,9 +10,9 @@ package md5
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Implementation of the MD5 hashing algorithm, as defined in RFC 1321 <https://datatracker.ietf.org/doc/html/rfc1321>
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*/
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import "core:io"
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import "core:mem"
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import "core:os"
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import "core:io"
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import "../util"
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@@ -25,77 +25,77 @@ DIGEST_SIZE :: 16
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// hash_string will hash the given input and return the
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// computed hash
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hash_string :: proc(data: string) -> [DIGEST_SIZE]byte {
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return hash_bytes(transmute([]byte)(data))
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return hash_bytes(transmute([]byte)(data))
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}
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// hash_bytes will hash the given input and return the
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// computed hash
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hash_bytes :: proc(data: []byte) -> [DIGEST_SIZE]byte {
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hash: [DIGEST_SIZE]byte
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ctx: Md5_Context
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init(&ctx)
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update(&ctx, data)
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final(&ctx, hash[:])
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return hash
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hash: [DIGEST_SIZE]byte
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ctx: Md5_Context
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init(&ctx)
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update(&ctx, data)
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final(&ctx, hash[:])
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return hash
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}
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// hash_string_to_buffer will hash the given input and assign the
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// computed hash to the second parameter.
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// It requires that the destination buffer is at least as big as the digest size
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hash_string_to_buffer :: proc(data: string, hash: []byte) {
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hash_bytes_to_buffer(transmute([]byte)(data), hash)
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hash_bytes_to_buffer(transmute([]byte)(data), hash)
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}
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// hash_bytes_to_buffer will hash the given input and write the
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// computed hash into the second parameter.
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// It requires that the destination buffer is at least as big as the digest size
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hash_bytes_to_buffer :: proc(data, hash: []byte) {
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assert(len(hash) >= DIGEST_SIZE, "Size of destination buffer is smaller than the digest size")
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ctx: Md5_Context
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init(&ctx)
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update(&ctx, data)
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final(&ctx, hash)
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assert(len(hash) >= DIGEST_SIZE, "Size of destination buffer is smaller than the digest size")
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ctx: Md5_Context
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init(&ctx)
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update(&ctx, data)
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final(&ctx, hash)
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}
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// hash_stream will read the stream in chunks and compute a
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// hash from its contents
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hash_stream :: proc(s: io.Stream) -> ([DIGEST_SIZE]byte, bool) {
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hash: [DIGEST_SIZE]byte
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ctx: Md5_Context
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init(&ctx)
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buf := make([]byte, 512)
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defer delete(buf)
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read := 1
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for read > 0 {
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read, _ = io.read(s, buf)
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if read > 0 {
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update(&ctx, buf[:read])
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}
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}
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final(&ctx, hash[:])
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return hash, true
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hash: [DIGEST_SIZE]byte
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ctx: Md5_Context
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init(&ctx)
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buf := make([]byte, 512)
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defer delete(buf)
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read := 1
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for read > 0 {
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read, _ = io.read(s, buf)
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if read > 0 {
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update(&ctx, buf[:read])
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}
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}
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final(&ctx, hash[:])
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return hash, true
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}
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// hash_file will read the file provided by the given handle
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// and compute a hash
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hash_file :: proc(hd: os.Handle, load_at_once := false) -> ([DIGEST_SIZE]byte, bool) {
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if !load_at_once {
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return hash_stream(os.stream_from_handle(hd))
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} else {
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if buf, ok := os.read_entire_file(hd); ok {
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return hash_bytes(buf[:]), ok
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}
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}
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return [DIGEST_SIZE]byte{}, false
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if !load_at_once {
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return hash_stream(os.stream_from_handle(hd))
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} else {
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if buf, ok := os.read_entire_file(hd); ok {
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return hash_bytes(buf[:]), ok
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}
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}
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return [DIGEST_SIZE]byte{}, false
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}
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hash :: proc {
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hash_stream,
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hash_file,
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hash_bytes,
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hash_string,
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hash_bytes_to_buffer,
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hash_string_to_buffer,
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hash_stream,
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hash_file,
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hash_bytes,
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hash_string,
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hash_bytes_to_buffer,
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hash_string_to_buffer,
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}
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/*
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@@ -103,76 +103,76 @@ hash :: proc {
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*/
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init :: proc(ctx: ^Md5_Context) {
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ctx.state[0] = 0x67452301
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ctx.state[1] = 0xefcdab89
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ctx.state[2] = 0x98badcfe
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ctx.state[3] = 0x10325476
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ctx.state[0] = 0x67452301
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ctx.state[1] = 0xefcdab89
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ctx.state[2] = 0x98badcfe
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ctx.state[3] = 0x10325476
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}
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update :: proc(ctx: ^Md5_Context, data: []byte) {
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for i := 0; i < len(data); i += 1 {
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ctx.data[ctx.datalen] = data[i]
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ctx.datalen += 1
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if(ctx.datalen == BLOCK_SIZE) {
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transform(ctx, ctx.data[:])
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ctx.bitlen += 512
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ctx.datalen = 0
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}
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}
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for i := 0; i < len(data); i += 1 {
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ctx.data[ctx.datalen] = data[i]
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ctx.datalen += 1
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if (ctx.datalen == BLOCK_SIZE) {
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transform(ctx, ctx.data[:])
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ctx.bitlen += 512
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ctx.datalen = 0
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}
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}
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}
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final :: proc(ctx: ^Md5_Context, hash: []byte){
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i : u32
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i = ctx.datalen
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final :: proc(ctx: ^Md5_Context, hash: []byte) {
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i: u32
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i = ctx.datalen
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if ctx.datalen < 56 {
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ctx.data[i] = 0x80
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i += 1
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for i < 56 {
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ctx.data[i] = 0x00
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i += 1
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}
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} else if ctx.datalen >= 56 {
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ctx.data[i] = 0x80
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i += 1
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for i < BLOCK_SIZE {
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ctx.data[i] = 0x00
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i += 1
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}
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transform(ctx, ctx.data[:])
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mem.set(&ctx.data, 0, 56)
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}
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if ctx.datalen < 56 {
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ctx.data[i] = 0x80
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i += 1
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for i < 56 {
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ctx.data[i] = 0x00
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i += 1
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}
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} else if ctx.datalen >= 56 {
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ctx.data[i] = 0x80
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i += 1
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for i < BLOCK_SIZE {
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ctx.data[i] = 0x00
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i += 1
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}
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transform(ctx, ctx.data[:])
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mem.set(&ctx.data, 0, 56)
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}
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ctx.bitlen += u64(ctx.datalen * 8)
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ctx.data[56] = byte(ctx.bitlen)
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ctx.data[57] = byte(ctx.bitlen >> 8)
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ctx.data[58] = byte(ctx.bitlen >> 16)
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ctx.data[59] = byte(ctx.bitlen >> 24)
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ctx.data[60] = byte(ctx.bitlen >> 32)
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ctx.data[61] = byte(ctx.bitlen >> 40)
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ctx.data[62] = byte(ctx.bitlen >> 48)
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ctx.data[63] = byte(ctx.bitlen >> 56)
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transform(ctx, ctx.data[:])
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ctx.bitlen += u64(ctx.datalen * 8)
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ctx.data[56] = byte(ctx.bitlen)
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ctx.data[57] = byte(ctx.bitlen >> 8)
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ctx.data[58] = byte(ctx.bitlen >> 16)
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ctx.data[59] = byte(ctx.bitlen >> 24)
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ctx.data[60] = byte(ctx.bitlen >> 32)
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ctx.data[61] = byte(ctx.bitlen >> 40)
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ctx.data[62] = byte(ctx.bitlen >> 48)
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ctx.data[63] = byte(ctx.bitlen >> 56)
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transform(ctx, ctx.data[:])
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for i = 0; i < 4; i += 1 {
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hash[i] = byte(ctx.state[0] >> (i * 8)) & 0x000000ff
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hash[i + 4] = byte(ctx.state[1] >> (i * 8)) & 0x000000ff
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hash[i + 8] = byte(ctx.state[2] >> (i * 8)) & 0x000000ff
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hash[i + 12] = byte(ctx.state[3] >> (i * 8)) & 0x000000ff
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}
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for i = 0; i < 4; i += 1 {
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hash[i] = byte(ctx.state[0] >> (i * 8)) & 0x000000ff
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hash[i + 4] = byte(ctx.state[1] >> (i * 8)) & 0x000000ff
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hash[i + 8] = byte(ctx.state[2] >> (i * 8)) & 0x000000ff
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hash[i + 12] = byte(ctx.state[3] >> (i * 8)) & 0x000000ff
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}
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}
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/*
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MD4 implementation
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*/
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BLOCK_SIZE :: 64
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BLOCK_SIZE :: 64
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Md5_Context :: struct {
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data: [BLOCK_SIZE]byte,
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state: [4]u32,
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bitlen: u64,
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datalen: u32,
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data: [BLOCK_SIZE]byte,
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state: [4]u32,
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bitlen: u64,
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datalen: u32,
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}
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/*
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@@ -181,105 +181,106 @@ Md5_Context :: struct {
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*/
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FF :: #force_inline proc "contextless" (a, b, c, d, m: u32, s: int, t: u32) -> u32 {
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return b + util.ROTL32(a + ((b & c) | (~b & d)) + m + t, s)
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return b + util.ROTL32(a + ((b & c) | (~b & d)) + m + t, s)
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}
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GG :: #force_inline proc "contextless" (a, b, c, d, m: u32, s: int, t: u32) -> u32 {
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return b + util.ROTL32(a + ((b & d) | (c & ~d)) + m + t, s)
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return b + util.ROTL32(a + ((b & d) | (c & ~d)) + m + t, s)
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}
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HH :: #force_inline proc "contextless" (a, b, c, d, m: u32, s: int, t: u32) -> u32 {
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return b + util.ROTL32(a + (b ~ c ~ d) + m + t, s)
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return b + util.ROTL32(a + (b ~ c ~ d) + m + t, s)
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}
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II :: #force_inline proc "contextless" (a, b, c, d, m: u32, s: int, t: u32) -> u32 {
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return b + util.ROTL32(a + (c ~ (b | ~d)) + m + t, s)
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return b + util.ROTL32(a + (c ~ (b | ~d)) + m + t, s)
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}
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transform :: proc(ctx: ^Md5_Context, data: []byte) {
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i, j: u32
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m: [DIGEST_SIZE]u32
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i, j: u32
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m: [DIGEST_SIZE]u32
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for i, j = 0, 0; i < DIGEST_SIZE; i+=1 {
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m[i] = u32(data[j]) + u32(data[j + 1]) << 8 + u32(data[j + 2]) << 16 + u32(data[j + 3]) << 24
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j += 4
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}
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for i, j = 0, 0; i < DIGEST_SIZE; i += 1 {
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m[i] =
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u32(data[j]) + u32(data[j + 1]) << 8 + u32(data[j + 2]) << 16 + u32(data[j + 3]) << 24
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j += 4
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}
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a := ctx.state[0]
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b := ctx.state[1]
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c := ctx.state[2]
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d := ctx.state[3]
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a := ctx.state[0]
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b := ctx.state[1]
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c := ctx.state[2]
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d := ctx.state[3]
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a = FF(a, b, c, d, m[0], 7, 0xd76aa478)
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d = FF(d, a, b, c, m[1], 12, 0xe8c7b756)
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c = FF(c, d, a, b, m[2], 17, 0x242070db)
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b = FF(b, c, d, a, m[3], 22, 0xc1bdceee)
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a = FF(a, b, c, d, m[4], 7, 0xf57c0faf)
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d = FF(d, a, b, c, m[5], 12, 0x4787c62a)
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c = FF(c, d, a, b, m[6], 17, 0xa8304613)
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b = FF(b, c, d, a, m[7], 22, 0xfd469501)
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a = FF(a, b, c, d, m[8], 7, 0x698098d8)
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d = FF(d, a, b, c, m[9], 12, 0x8b44f7af)
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c = FF(c, d, a, b, m[10], 17, 0xffff5bb1)
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b = FF(b, c, d, a, m[11], 22, 0x895cd7be)
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a = FF(a, b, c, d, m[12], 7, 0x6b901122)
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d = FF(d, a, b, c, m[13], 12, 0xfd987193)
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c = FF(c, d, a, b, m[14], 17, 0xa679438e)
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b = FF(b, c, d, a, m[15], 22, 0x49b40821)
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a = FF(a, b, c, d, m[0], 7, 0xd76aa478)
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d = FF(d, a, b, c, m[1], 12, 0xe8c7b756)
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c = FF(c, d, a, b, m[2], 17, 0x242070db)
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b = FF(b, c, d, a, m[3], 22, 0xc1bdceee)
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a = FF(a, b, c, d, m[4], 7, 0xf57c0faf)
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d = FF(d, a, b, c, m[5], 12, 0x4787c62a)
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c = FF(c, d, a, b, m[6], 17, 0xa8304613)
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b = FF(b, c, d, a, m[7], 22, 0xfd469501)
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a = FF(a, b, c, d, m[8], 7, 0x698098d8)
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d = FF(d, a, b, c, m[9], 12, 0x8b44f7af)
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c = FF(c, d, a, b, m[10], 17, 0xffff5bb1)
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b = FF(b, c, d, a, m[11], 22, 0x895cd7be)
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a = FF(a, b, c, d, m[12], 7, 0x6b901122)
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d = FF(d, a, b, c, m[13], 12, 0xfd987193)
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c = FF(c, d, a, b, m[14], 17, 0xa679438e)
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b = FF(b, c, d, a, m[15], 22, 0x49b40821)
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a = GG(a, b, c, d, m[1], 5, 0xf61e2562)
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d = GG(d, a, b, c, m[6], 9, 0xc040b340)
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c = GG(c, d, a, b, m[11], 14, 0x265e5a51)
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b = GG(b, c, d, a, m[0], 20, 0xe9b6c7aa)
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a = GG(a, b, c, d, m[5], 5, 0xd62f105d)
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d = GG(d, a, b, c, m[10], 9, 0x02441453)
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c = GG(c, d, a, b, m[15], 14, 0xd8a1e681)
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b = GG(b, c, d, a, m[4], 20, 0xe7d3fbc8)
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a = GG(a, b, c, d, m[9], 5, 0x21e1cde6)
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d = GG(d, a, b, c, m[14], 9, 0xc33707d6)
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c = GG(c, d, a, b, m[3], 14, 0xf4d50d87)
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b = GG(b, c, d, a, m[8], 20, 0x455a14ed)
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a = GG(a, b, c, d, m[13], 5, 0xa9e3e905)
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d = GG(d, a, b, c, m[2], 9, 0xfcefa3f8)
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c = GG(c, d, a, b, m[7], 14, 0x676f02d9)
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b = GG(b, c, d, a, m[12], 20, 0x8d2a4c8a)
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a = GG(a, b, c, d, m[1], 5, 0xf61e2562)
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d = GG(d, a, b, c, m[6], 9, 0xc040b340)
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c = GG(c, d, a, b, m[11], 14, 0x265e5a51)
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b = GG(b, c, d, a, m[0], 20, 0xe9b6c7aa)
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a = GG(a, b, c, d, m[5], 5, 0xd62f105d)
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d = GG(d, a, b, c, m[10], 9, 0x02441453)
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c = GG(c, d, a, b, m[15], 14, 0xd8a1e681)
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b = GG(b, c, d, a, m[4], 20, 0xe7d3fbc8)
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a = GG(a, b, c, d, m[9], 5, 0x21e1cde6)
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d = GG(d, a, b, c, m[14], 9, 0xc33707d6)
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c = GG(c, d, a, b, m[3], 14, 0xf4d50d87)
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b = GG(b, c, d, a, m[8], 20, 0x455a14ed)
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a = GG(a, b, c, d, m[13], 5, 0xa9e3e905)
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d = GG(d, a, b, c, m[2], 9, 0xfcefa3f8)
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c = GG(c, d, a, b, m[7], 14, 0x676f02d9)
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b = GG(b, c, d, a, m[12], 20, 0x8d2a4c8a)
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a = HH(a, b, c, d, m[5], 4, 0xfffa3942)
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d = HH(d, a, b, c, m[8], 11, 0x8771f681)
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c = HH(c, d, a, b, m[11], 16, 0x6d9d6122)
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b = HH(b, c, d, a, m[14], 23, 0xfde5380c)
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a = HH(a, b, c, d, m[1], 4, 0xa4beea44)
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d = HH(d, a, b, c, m[4], 11, 0x4bdecfa9)
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c = HH(c, d, a, b, m[7], 16, 0xf6bb4b60)
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b = HH(b, c, d, a, m[10], 23, 0xbebfbc70)
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a = HH(a, b, c, d, m[13], 4, 0x289b7ec6)
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d = HH(d, a, b, c, m[0], 11, 0xeaa127fa)
|
||||
c = HH(c, d, a, b, m[3], 16, 0xd4ef3085)
|
||||
b = HH(b, c, d, a, m[6], 23, 0x04881d05)
|
||||
a = HH(a, b, c, d, m[9], 4, 0xd9d4d039)
|
||||
d = HH(d, a, b, c, m[12], 11, 0xe6db99e5)
|
||||
c = HH(c, d, a, b, m[15], 16, 0x1fa27cf8)
|
||||
b = HH(b, c, d, a, m[2], 23, 0xc4ac5665)
|
||||
a = HH(a, b, c, d, m[5], 4, 0xfffa3942)
|
||||
d = HH(d, a, b, c, m[8], 11, 0x8771f681)
|
||||
c = HH(c, d, a, b, m[11], 16, 0x6d9d6122)
|
||||
b = HH(b, c, d, a, m[14], 23, 0xfde5380c)
|
||||
a = HH(a, b, c, d, m[1], 4, 0xa4beea44)
|
||||
d = HH(d, a, b, c, m[4], 11, 0x4bdecfa9)
|
||||
c = HH(c, d, a, b, m[7], 16, 0xf6bb4b60)
|
||||
b = HH(b, c, d, a, m[10], 23, 0xbebfbc70)
|
||||
a = HH(a, b, c, d, m[13], 4, 0x289b7ec6)
|
||||
d = HH(d, a, b, c, m[0], 11, 0xeaa127fa)
|
||||
c = HH(c, d, a, b, m[3], 16, 0xd4ef3085)
|
||||
b = HH(b, c, d, a, m[6], 23, 0x04881d05)
|
||||
a = HH(a, b, c, d, m[9], 4, 0xd9d4d039)
|
||||
d = HH(d, a, b, c, m[12], 11, 0xe6db99e5)
|
||||
c = HH(c, d, a, b, m[15], 16, 0x1fa27cf8)
|
||||
b = HH(b, c, d, a, m[2], 23, 0xc4ac5665)
|
||||
|
||||
a = II(a, b, c, d, m[0], 6, 0xf4292244)
|
||||
d = II(d, a, b, c, m[7], 10, 0x432aff97)
|
||||
c = II(c, d, a, b, m[14], 15, 0xab9423a7)
|
||||
b = II(b, c, d, a, m[5], 21, 0xfc93a039)
|
||||
a = II(a, b, c, d, m[12], 6, 0x655b59c3)
|
||||
d = II(d, a, b, c, m[3], 10, 0x8f0ccc92)
|
||||
c = II(c, d, a, b, m[10], 15, 0xffeff47d)
|
||||
b = II(b, c, d, a, m[1], 21, 0x85845dd1)
|
||||
a = II(a, b, c, d, m[8], 6, 0x6fa87e4f)
|
||||
d = II(d, a, b, c, m[15], 10, 0xfe2ce6e0)
|
||||
c = II(c, d, a, b, m[6], 15, 0xa3014314)
|
||||
b = II(b, c, d, a, m[13], 21, 0x4e0811a1)
|
||||
a = II(a, b, c, d, m[4], 6, 0xf7537e82)
|
||||
d = II(d, a, b, c, m[11], 10, 0xbd3af235)
|
||||
c = II(c, d, a, b, m[2], 15, 0x2ad7d2bb)
|
||||
b = II(b, c, d, a, m[9], 21, 0xeb86d391)
|
||||
a = II(a, b, c, d, m[0], 6, 0xf4292244)
|
||||
d = II(d, a, b, c, m[7], 10, 0x432aff97)
|
||||
c = II(c, d, a, b, m[14], 15, 0xab9423a7)
|
||||
b = II(b, c, d, a, m[5], 21, 0xfc93a039)
|
||||
a = II(a, b, c, d, m[12], 6, 0x655b59c3)
|
||||
d = II(d, a, b, c, m[3], 10, 0x8f0ccc92)
|
||||
c = II(c, d, a, b, m[10], 15, 0xffeff47d)
|
||||
b = II(b, c, d, a, m[1], 21, 0x85845dd1)
|
||||
a = II(a, b, c, d, m[8], 6, 0x6fa87e4f)
|
||||
d = II(d, a, b, c, m[15], 10, 0xfe2ce6e0)
|
||||
c = II(c, d, a, b, m[6], 15, 0xa3014314)
|
||||
b = II(b, c, d, a, m[13], 21, 0x4e0811a1)
|
||||
a = II(a, b, c, d, m[4], 6, 0xf7537e82)
|
||||
d = II(d, a, b, c, m[11], 10, 0xbd3af235)
|
||||
c = II(c, d, a, b, m[2], 15, 0x2ad7d2bb)
|
||||
b = II(b, c, d, a, m[9], 21, 0xeb86d391)
|
||||
|
||||
ctx.state[0] += a
|
||||
ctx.state[1] += b
|
||||
ctx.state[2] += c
|
||||
ctx.state[3] += d
|
||||
ctx.state[0] += a
|
||||
ctx.state[1] += b
|
||||
ctx.state[2] += c
|
||||
ctx.state[3] += d
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user