DigestUtils工具类
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DigestUtils是一个算法工具类，在package org.apache.commons.codec.digest;这个包下。
该类中常用的方法有：
/**
* Calculates the MD5 digest and returns the value as a 16 element byte[].
*
* @param data
* Data to digest
* @return MD5 digest
*/
public static byte[] md5(byte[] data) {
return getMd5Digest().digest(data);
}
/**
* Calculates the MD5 digest and returns the value as a 16 element byte[].
*
* @param data
* Data to digest
* @return MD5 digest
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static byte[] md5(InputStream data) throws IOException {
return digest(getMd5Digest(), data);
}
/**
* Calculates the MD5 digest and returns the value as a 16 element byte[].
*
* @param data
* Data to digest
* @return MD5 digest
*/
public static byte[] md5(String data) {
return md5(getBytesUtf8(data));
} /**
* Calculates the MD5 digest and returns the value as a 32 character hex string.
*
* @param data
* Data to digest
* @return MD5 digest as a hex string
*/
public static String md5Hex(byte[] data) {
return Hex.encodeHexString(md5(data));
}
/**
* Calculates the MD5 digest and returns the value as a 32 character hex string.
*
* @param data
* Data to digest
* @return MD5 digest as a hex string
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static String md5Hex(InputStream data) throws IOException {
return Hex.encodeHexString(md5(data));
}
/**
* Calculates the MD5 digest and returns the value as a 32 character hex string.
*
* @param data
* Data to digest
* @return MD5 digest as a hex string
*/
public static String md5Hex(String data) {
return Hex.encodeHexString(md5(data));
}
/**
* Calculates the SHA-1 digest and returns the value as a byte[].
*
* @param data
* Data to digest
* @return SHA-1 digest
*/
public static byte[] sha(byte[] data) {
return getShaDigest().digest(data);
}
/**
* Calculates the SHA-1 digest and returns the value as a byte[].
*
* @param data
* Data to digest
* @return SHA-1 digest
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static byte[] sha(InputStream data) throws IOException {
return digest(getShaDigest(), data);
}
/**
* Calculates the SHA-1 digest and returns the value as a byte[].
*
* @param data
* Data to digest
* @return SHA-1 digest
*/
public static byte[] sha(String data) {
return sha(getBytesUtf8(data));
}
/**
* Calculates the SHA-256 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-256 digest
* @since 1.4
*/
public static byte[] sha256(byte[] data) {
return getSha256Digest().digest(data);
}
/**
* Calculates the SHA-256 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-256 digest
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static byte[] sha256(InputStream data) throws IOException {
return digest(getSha256Digest(), data);
}
/**
* Calculates the SHA-256 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-256 digest
* @since 1.4
*/
public static byte[] sha256(String data) {
return sha256(getBytesUtf8(data));
}
/**
* Calculates the SHA-256 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-256 digest as a hex string
* @since 1.4
*/
public static String sha256Hex(byte[] data) {
return Hex.encodeHexString(sha256(data));
}
/**
* Calculates the SHA-256 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-256 digest as a hex string
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static String sha256Hex(InputStream data) throws IOException {
return Hex.encodeHexString(sha256(data));
}
/**
* Calculates the SHA-256 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-256 digest as a hex string
* @since 1.4
*/
public static String sha256Hex(String data) {
return Hex.encodeHexString(sha256(data));
}
/**
* Calculates the SHA-384 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-384 digest
* @since 1.4
*/
public static byte[] sha384(byte[] data) {
return getSha384Digest().digest(data);
}
/**
* Calculates the SHA-384 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-384 digest
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static byte[] sha384(InputStream data) throws IOException {
return digest(getSha384Digest(), data);
}
/**
* Calculates the SHA-384 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-384 digest
* @since 1.4
*/
public static byte[] sha384(String data) {
return sha384(getBytesUtf8(data));
}
/**
* Calculates the SHA-384 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-384 digest as a hex string
* @since 1.4
*/
public static String sha384Hex(byte[] data) {
return Hex.encodeHexString(sha384(data));
}
/**
* Calculates the SHA-384 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-384 digest as a hex string
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static String sha384Hex(InputStream data) throws IOException {
return Hex.encodeHexString(sha384(data));
}
/**
* Calculates the SHA-384 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-384 digest as a hex string
* @since 1.4
*/
public static String sha384Hex(String data) {
return Hex.encodeHexString(sha384(data));
}
/**
* Calculates the SHA-512 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-512 digest
* @since 1.4
*/
public static byte[] sha512(byte[] data) {
return getSha512Digest().digest(data);
}
/**
* Calculates the SHA-512 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-512 digest
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static byte[] sha512(InputStream data) throws IOException {
return digest(getSha512Digest(), data);
}
/**
* Calculates the SHA-512 digest and returns the value as a byte[].
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-512 digest
* @since 1.4
*/
public static byte[] sha512(String data) {
return sha512(getBytesUtf8(data));
}
/**
* Calculates the SHA-512 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-512 digest as a hex string
* @since 1.4
*/
public static String sha512Hex(byte[] data) {
return Hex.encodeHexString(sha512(data));
}
/**
* Calculates the SHA-512 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-512 digest as a hex string
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static String sha512Hex(InputStream data) throws IOException {
return Hex.encodeHexString(sha512(data));
}
/**
* Calculates the SHA-512 digest and returns the value as a hex string.
*
* Throws a RuntimeException on JRE versions prior to 1.4.0.
*
*
* @param data
* Data to digest
* @return SHA-512 digest as a hex string
* @since 1.4
*/
public static String sha512Hex(String data) {
return Hex.encodeHexString(sha512(data));
}
/**
* Calculates the SHA-1 digest and returns the value as a hex string.
*
* @param data
* Data to digest
* @return SHA-1 digest as a hex string
*/
public static String shaHex(byte[] data) {
return Hex.encodeHexString(sha(data));
}
/**
* Calculates the SHA-1 digest and returns the value as a hex string.
*
* @param data
* Data to digest
* @return SHA-1 digest as a hex string
* @throws IOException
* On error reading from the stream
* @since 1.4
*/
public static String shaHex(InputStream data) throws IOException {
return Hex.encodeHexString(sha(data));
}
/**
* Calculates the SHA-1 digest and returns the value as a hex string.
*
* @param data
* Data to digest
* @return SHA-1 digest as a hex string
*/
public static String shaHex(String data) {
return Hex.encodeHexString(sha(data));
}