初次提交

aes/cfb.go

@@ -0,0 +1,20 @@
+package aes
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+)
+
+func AesCfbNewEncrypSteam() cipher.Stream {
+	block, _ := aes.NewCipher(Key)
+	iv := bytes.Repeat([]byte("1"), block.BlockSize())
+
+	return cipher.NewCFBEncrypter(block, iv)
+}
+func AesCfbNewDecrypSteam() cipher.Stream {
+	block, _ := aes.NewCipher(Key)
+	iv := bytes.Repeat([]byte("1"), block.BlockSize())
+
+	return cipher.NewCFBDecrypter(block, iv)
+}

aes/ctr.go

@@ -0,0 +1,46 @@
+package aes
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/md5"
+	"unsafe"
+)
+
+var Key []byte
+
+func AesCtrEncrypt(dst, plainText []byte) []byte {
+	//1. 创建cipher.Block接口
+	block, _ := aes.NewCipher(Key)
+
+	//2. 创建分组模式，在crypto/cipher包中
+	iv := bytes.Repeat([]byte("1"), block.BlockSize())
+	stream := cipher.NewCTR(block, iv)
+	//3. 加密
+
+	stream.XORKeyStream(dst, plainText)
+
+	return dst
+}
+
+func AesCtrDecrypt(encryptData []byte) []byte {
+	data := make([]byte, len(encryptData))
+	return AesCtrEncrypt(data, encryptData)
+}
+
+const hextable = "0123456789abcdef"
+
+func MD5_B(str string) []byte {
+	dst := make([]byte, 32)
+	for k, v := range md5.Sum(Str2bytes(str)) {
+		dst[k*2] = hextable[v>>4]
+		dst[k*2+1] = hextable[v&0x0f]
+	}
+	return dst
+}
+func Str2bytes(s string) []byte {
+	x := (*[2]uintptr)(unsafe.Pointer(&s))
+	h := [3]uintptr{x[0], x[1], x[1]}
+	return *(*[]byte)(unsafe.Pointer(&h))
+}