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23 lines
441 B
Go
23 lines
441 B
Go
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package shadowstream
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import (
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"crypto/cipher"
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"github.com/aead/chacha20/chacha"
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)
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type chacha20key []byte
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func (k chacha20key) IVSize() int {
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return chacha.NonceSize
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}
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func (k chacha20key) Encrypter(iv []byte) cipher.Stream {
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c, _ := chacha.NewCipher(iv, k, 20)
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return c
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}
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func (k chacha20key) Decrypter(iv []byte) cipher.Stream {
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return k.Encrypter(iv)
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}
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func ChaCha20(key []byte) (Cipher, error) {
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return chacha20key(key), nil
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}
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