X-Git-Url: http://www.git.cypherpunks.ru/?a=blobdiff_plain;f=gost28147%2Fecb.go;fp=gost28147%2Fecb.go;h=0c47ec3886ed593c9944796dfe4f65057e9f88f3;hb=c07494bbd559b9d00f391e28cfd070e18afe9900;hp=0000000000000000000000000000000000000000;hpb=107600dede989f0cc479b5a72c5f97e174307154;p=gogost.git

diff --git a/gost28147/ecb.go b/gost28147/ecb.go
new file mode 100644
index 0000000..0c47ec3
--- /dev/null
+++ b/gost28147/ecb.go
@@ -0,0 +1,54 @@
+// GoGOST -- Pure Go GOST cryptographic functions library
+// Copyright (C) 2015-2019 Sergey Matveev <stargrave@stargrave.org>
+//
+// 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, version 3 of the License.
+//
+// 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, see <http://www.gnu.org/licenses/>.
+
+package gost28147
+
+type ECBEncrypter struct {
+	c *Cipher
+}
+
+func (c *Cipher) NewECBEncrypter() *ECBEncrypter {
+	e := ECBEncrypter{c}
+	return &e
+}
+
+func (e *ECBEncrypter) CryptBlocks(dst, src []byte) {
+	for i := 0; i < len(src); i += BlockSize {
+		e.c.Encrypt(dst[i:i+BlockSize], src[i:i+BlockSize])
+	}
+}
+
+func (e *ECBEncrypter) BlockSize() int {
+	return e.c.BlockSize()
+}
+
+type ECBDecrypter struct {
+	c *Cipher
+}
+
+func (c *Cipher) NewECBDecrypter() *ECBDecrypter {
+	d := ECBDecrypter{c}
+	return &d
+}
+
+func (e *ECBDecrypter) CryptBlocks(dst, src []byte) {
+	for i := 0; i < len(src); i += BlockSize {
+		e.c.Decrypt(dst[i:i+BlockSize], src[i:i+BlockSize])
+	}
+}
+
+func (e *ECBDecrypter) BlockSize() int {
+	return e.c.BlockSize()
+}