32 lines
939 B
V
32 lines
939 B
V
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import crypto.aes
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import crypto.cipher
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fn test_aes_ofb() {
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key := '6368616e676520746869732070617373'.bytes()
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iv := '1234567890123456'.bytes()
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str := '73c86d43a9d700a253a96c85b0f6b03ac9792e0e757f869cca306bd3cba1c62b'
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mut src := str.bytes()
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aes_ofb_en(mut src, key, iv)
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assert src.hex() == '04380c1470ab2d8a0b3f9b4c1949b8aca120db226fa0a848236f9904f786dfc39bc433b5d3870d1cfdef36debdee5e6f39b0e8e9462b0151d61e822944181b51'
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dump(src.hex())
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mut plaintext := src.clone()
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aes_ofb_de(mut plaintext, key, iv)
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assert plaintext.bytestr() == str
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dump(plaintext.bytestr())
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println('test_aes_ofb ok')
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}
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fn aes_ofb_en(mut src []byte, key []byte, iv []byte) {
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block := aes.new_cipher(key)
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mode := cipher.new_ofb(block, iv)
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mode.xor_key_stream(mut src, src.clone())
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}
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fn aes_ofb_de(mut src []byte, key []byte, iv []byte) {
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block := aes.new_cipher(key)
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mut mode := cipher.new_ofb(block, iv)
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mode.xor_key_stream(mut src, src.clone())
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}
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