public static Padding getNormalized(String value) {
            Padding p = Padding.valueOf(value.toUpperCase(Locale.US));
            if (p == PKCS7PADDING) {
                return PKCS5PADDING;
            }
            return p;
        }
Paddings that a block cipher may support.
common/src/main/java/org/conscrypt/OpenSSLCipher.java