private static String getFingerprint(X509Certificate cert) {
try {
MessageDigest dgst = MessageDigest.getInstance("SHA512");
byte[] encoded = cert.getPublicKey().getEncoded();
byte[] fingerprint = dgst.digest(encoded);
return IntegralToString.bytesToHexString(fingerprint, false);
} catch (NoSuchAlgorithmException e) {
throw new AssertionError(e);
}
}
/**
* Converts the specified signed long value into a string representation based on the specified
* radix. The returned string is a concatenation of a minus sign if the number is negative and
* characters from '0' to '9' and 'a' to 'z', depending on the radix. If {@code radix} is not in
* the interval defined by {@code Character.MIN_RADIX} and {@code Character.MAX_RADIX} then 10 is
* used as the base for the conversion.
*
* <p>This method treats its argument as signed. If you want to convert an unsigned value to one
* of the common non-decimal bases, you may find {@link #toBinaryString}, {@code #toHexString}, or
* {@link #toOctalString} more convenient.
*
* @param v the signed long to convert.
* @param radix the base to use for the conversion.
* @return the string representation of {@code v}.
*/
public static String toString(long v, int radix) {
return IntegralToString.longToString(v, radix);
}
/**
* Converts the specified long value into its decimal string representation. The returned string
* is a concatenation of a minus sign if the number is negative and characters from '0' to '9'.
*
* @param n the long to convert.
* @return the decimal string representation of {@code l}.
*/
public static String toString(long n) {
return IntegralToString.longToString(n);
}
/**
* Converts the specified long value into its octal string representation. The returned string is
* a concatenation of characters from '0' to '7'.
*
* @param v the long value to convert.
* @return the octal string representation of {@code l}.
*/
public static String toOctalString(long v) {
return IntegralToString.longToOctalString(v);
}
/**
* Converts the specified long value into its hexadecimal string representation. The returned
* string is a concatenation of characters from '0' to '9' and 'a' to 'f'.
*
* @param v the long value to convert.
* @return the hexadecimal string representation of {@code l}.
*/
public static String toHexString(long v) {
return IntegralToString.longToHexString(v);
}
/**
* Converts the specified long value into its binary string representation. The returned string is
* a concatenation of '0' and '1' characters.
*
* @param v the long value to convert.
* @return the binary string representation of {@code v}.
*/
public static String toBinaryString(long v) {
return IntegralToString.longToBinaryString(v);
}
