34 lines
583 B
Go
34 lines
583 B
Go
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package set1
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func XOREncryptText(plaintext string, key string) (cipher []byte) {
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cursor := 0
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nextKeyChar := func() (char byte) {
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char = key[cursor]
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cursor++
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if cursor >= len(key) {
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cursor = 0
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}
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return
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}
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cipher = make([]byte, len(plaintext), len(plaintext))
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for i := 0; i < len(plaintext); i++ {
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cipher[i] = plaintext[i] ^ nextKeyChar()
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}
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return
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}
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func ConvertToHex(bytes []byte) (hexBytes []byte) {
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for i := 0; i < len(bytes); i++ {
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hexBytes = append(hexBytes, HexRepresentations[bytes[i]>>4], HexRepresentations[0b00001111&bytes[i]])
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}
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return
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}
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