encryption

var (
	// ErrInvalidBlockSize indicates block size <= 0.
	ErrInvalidBlockSize = errors.New("invalid block size")

	// ErrInvalidPKCS7Data indicates bad input to PKCS7 pad or unpad.
	ErrInvalidPKCS7Data = errors.New("invalid PKCS7 data (empty or not padded)")

	// ErrInvalidPKCS7Padding indicates PKCS7 unpad fails.
	ErrInvalidPKCS7Padding = errors.New("invalid padding on input")

	// ErrEmptyCiphertext indicates empty ciphertext.
	ErrEmptyCiphertext = errors.New("empty ciphertext")

	// ErrInvalidCiphertextSize indicates that the size of ciphertext is not a multiple of blocksize.
	ErrInvalidCiphertextSize = errors.New("invalid ciphertext size")

	// ErrInvalidKeySize indicates that the size of key is not 16 bytes
	ErrInvalidKeySize = errors.New("invalid key size")

	// ErrInvalidIVSize indicates that the size of iv is not 16 bytes
	ErrInvalidIVSize = errors.New("invalid iv size")
)