add decrypt function
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1 changed files with 5 additions and 0 deletions
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@ -71,6 +71,11 @@ func NewBlob(data, key, iv []byte) (Blob, error) {
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return ciphertext, nil
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}
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// DecryptBlob decrypts a blob
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func DecryptBlob(b Blob, key, iv []byte) ([]byte, error) {
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return b.Plaintext(key, iv)
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}
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func (b Blob) Plaintext(key, iv []byte) ([]byte, error) {
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blockCipher, err := aes.NewCipher(key)
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if err != nil {
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