Examples with AssertionFailedException com.mysql.cj.exceptions.AssertionFailedException used on opensource projects

Example 1 with AssertionFailedException

use of com.mysql.cj.exceptions.AssertionFailedException in project JavaSegundasQuintas by ecteruel.

the class Security method scramble411.

/**
 * Hashing for MySQL-4.1 authentication. Algorithm is as follows (c.f. <i>sql/auth/password.c</i>):
 *
 * <pre>
 * SERVER: public_seed=create_random_string()
 * send(public_seed)
 *
 * CLIENT: recv(public_seed)
 * hash_stage1=sha1("password")
 * hash_stage2=sha1(hash_stage1)
 * reply=xor(hash_stage1, sha1(public_seed,hash_stage2))
 * send(reply)
 * </pre>
 *
 * @param password
 *            password
 * @param seed
 *            seed
 * @return bytes
 */
public static byte[] scramble411(byte[] password, byte[] seed) {
    MessageDigest md;
    try {
        md = MessageDigest.getInstance("SHA-1");
    } catch (NoSuchAlgorithmException ex) {
        throw new AssertionFailedException(ex);
    }
    byte[] passwordHashStage1 = md.digest(password);
    md.reset();
    byte[] passwordHashStage2 = md.digest(passwordHashStage1);
    md.reset();
    md.update(seed);
    md.update(passwordHashStage2);
    byte[] toBeXord = md.digest();
    int numToXor = toBeXord.length;
    for (int i = 0; i < numToXor; i++) {
        toBeXord[i] = (byte) (toBeXord[i] ^ passwordHashStage1[i]);
    }
    return toBeXord;
}

Example 2 with AssertionFailedException

use of com.mysql.cj.exceptions.AssertionFailedException in project JavaSegundasQuintas by ecteruel.

the class Security method scrambleCachingSha2.

/**
 * Scrambling for caching_sha2_password plugin.
 *
 * <pre>
 * Scramble = XOR(SHA2(password), SHA2(SHA2(SHA2(password)), Nonce))
 * </pre>
 *
 * @param password
 *            password
 * @param seed
 *            seed
 * @return bytes
 *
 * @throws DigestException
 *             if an error occurs
 */
public static byte[] scrambleCachingSha2(byte[] password, byte[] seed) throws DigestException {
    /*
         * Server does it in 4 steps (see sql/auth/sha2_password_common.cc Generate_scramble::scramble method):
         * 
         * SHA2(src) => digest_stage1
         * SHA2(digest_stage1) => digest_stage2
         * SHA2(digest_stage2, m_rnd) => scramble_stage1
         * XOR(digest_stage1, scramble_stage1) => scramble
         */
    MessageDigest md;
    try {
        md = MessageDigest.getInstance("SHA-256");
    } catch (NoSuchAlgorithmException ex) {
        throw new AssertionFailedException(ex);
    }
    byte[] dig1 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    byte[] dig2 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    byte[] scramble1 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    // SHA2(src) => digest_stage1
    md.update(password, 0, password.length);
    md.digest(dig1, 0, CACHING_SHA2_DIGEST_LENGTH);
    md.reset();
    // SHA2(digest_stage1) => digest_stage2
    md.update(dig1, 0, dig1.length);
    md.digest(dig2, 0, CACHING_SHA2_DIGEST_LENGTH);
    md.reset();
    // SHA2(digest_stage2, m_rnd) => scramble_stage1
    md.update(dig2, 0, dig1.length);
    md.update(seed, 0, seed.length);
    md.digest(scramble1, 0, CACHING_SHA2_DIGEST_LENGTH);
    // XOR(digest_stage1, scramble_stage1) => scramble
    byte[] mysqlScrambleBuff = new byte[CACHING_SHA2_DIGEST_LENGTH];
    xorString(dig1, mysqlScrambleBuff, scramble1, CACHING_SHA2_DIGEST_LENGTH);
    return mysqlScrambleBuff;
}

Example 3 with AssertionFailedException

use of com.mysql.cj.exceptions.AssertionFailedException in project aws-mysql-jdbc by awslabs.

the class Security method scrambleCachingSha2.

/**
 * Scrambling for caching_sha2_password plugin.
 *
 * <pre>
 * Scramble = XOR(SHA2(password), SHA2(SHA2(SHA2(password)), Nonce))
 * </pre>
 *
 * @param password
 *            password
 * @param seed
 *            seed
 * @return bytes
 *
 * @throws DigestException
 *             if an error occurs
 */
public static byte[] scrambleCachingSha2(byte[] password, byte[] seed) throws DigestException {
    /*
         * Server does it in 4 steps (see sql/auth/sha2_password_common.cc Generate_scramble::scramble method):
         * 
         * SHA2(src) => digest_stage1
         * SHA2(digest_stage1) => digest_stage2
         * SHA2(digest_stage2, m_rnd) => scramble_stage1
         * XOR(digest_stage1, scramble_stage1) => scramble
         */
    MessageDigest md;
    try {
        md = MessageDigest.getInstance("SHA-256");
    } catch (NoSuchAlgorithmException ex) {
        throw new AssertionFailedException(ex);
    }
    byte[] dig1 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    byte[] dig2 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    byte[] scramble1 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    // SHA2(src) => digest_stage1
    md.update(password, 0, password.length);
    md.digest(dig1, 0, CACHING_SHA2_DIGEST_LENGTH);
    md.reset();
    // SHA2(digest_stage1) => digest_stage2
    md.update(dig1, 0, dig1.length);
    md.digest(dig2, 0, CACHING_SHA2_DIGEST_LENGTH);
    md.reset();
    // SHA2(digest_stage2, m_rnd) => scramble_stage1
    md.update(dig2, 0, dig1.length);
    md.update(seed, 0, seed.length);
    md.digest(scramble1, 0, CACHING_SHA2_DIGEST_LENGTH);
    // XOR(digest_stage1, scramble_stage1) => scramble
    byte[] mysqlScrambleBuff = new byte[CACHING_SHA2_DIGEST_LENGTH];
    xorString(dig1, mysqlScrambleBuff, scramble1, CACHING_SHA2_DIGEST_LENGTH);
    return mysqlScrambleBuff;
}

Example 4 with AssertionFailedException

use of com.mysql.cj.exceptions.AssertionFailedException in project aws-mysql-jdbc by awslabs.

the class Security method scramble411.

/**
 * Hashing for MySQL-4.1 authentication. Algorithm is as follows (c.f. <i>sql/auth/password.c</i>):
 *
 * <pre>
 * SERVER: public_seed=create_random_string()
 * send(public_seed)
 *
 * CLIENT: recv(public_seed)
 * hash_stage1=sha1("password")
 * hash_stage2=sha1(hash_stage1)
 * reply=xor(hash_stage1, sha1(public_seed,hash_stage2))
 * send(reply)
 * </pre>
 *
 * @param password
 *            password
 * @param seed
 *            seed
 * @return bytes
 */
public static byte[] scramble411(byte[] password, byte[] seed) {
    MessageDigest md;
    try {
        md = MessageDigest.getInstance("SHA-1");
    } catch (NoSuchAlgorithmException ex) {
        throw new AssertionFailedException(ex);
    }
    byte[] passwordHashStage1 = md.digest(password);
    md.reset();
    byte[] passwordHashStage2 = md.digest(passwordHashStage1);
    md.reset();
    md.update(seed);
    md.update(passwordHashStage2);
    byte[] toBeXord = md.digest();
    int numToXor = toBeXord.length;
    for (int i = 0; i < numToXor; i++) {
        toBeXord[i] = (byte) (toBeXord[i] ^ passwordHashStage1[i]);
    }
    return toBeXord;
}

Example 5 with AssertionFailedException

use of com.mysql.cj.exceptions.AssertionFailedException in project ABC by RuiPinto96274.

the class Security method scrambleCachingSha2.

/**
 * Scrambling for caching_sha2_password plugin.
 *
 * <pre>
 * Scramble = XOR(SHA2(password), SHA2(SHA2(SHA2(password)), Nonce))
 * </pre>
 *
 * @param password
 *            password
 * @param seed
 *            seed
 * @return bytes
 *
 * @throws DigestException
 *             if an error occurs
 */
public static byte[] scrambleCachingSha2(byte[] password, byte[] seed) throws DigestException {
    /*
         * Server does it in 4 steps (see sql/auth/sha2_password_common.cc Generate_scramble::scramble method):
         * 
         * SHA2(src) => digest_stage1
         * SHA2(digest_stage1) => digest_stage2
         * SHA2(digest_stage2, m_rnd) => scramble_stage1
         * XOR(digest_stage1, scramble_stage1) => scramble
         */
    MessageDigest md;
    try {
        md = MessageDigest.getInstance("SHA-256");
    } catch (NoSuchAlgorithmException ex) {
        throw new AssertionFailedException(ex);
    }
    byte[] dig1 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    byte[] dig2 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    byte[] scramble1 = new byte[CACHING_SHA2_DIGEST_LENGTH];
    // SHA2(src) => digest_stage1
    md.update(password, 0, password.length);
    md.digest(dig1, 0, CACHING_SHA2_DIGEST_LENGTH);
    md.reset();
    // SHA2(digest_stage1) => digest_stage2
    md.update(dig1, 0, dig1.length);
    md.digest(dig2, 0, CACHING_SHA2_DIGEST_LENGTH);
    md.reset();
    // SHA2(digest_stage2, m_rnd) => scramble_stage1
    md.update(dig2, 0, dig1.length);
    md.update(seed, 0, seed.length);
    md.digest(scramble1, 0, CACHING_SHA2_DIGEST_LENGTH);
    // XOR(digest_stage1, scramble_stage1) => scramble
    byte[] mysqlScrambleBuff = new byte[CACHING_SHA2_DIGEST_LENGTH];
    xorString(dig1, mysqlScrambleBuff, scramble1, CACHING_SHA2_DIGEST_LENGTH);
    return mysqlScrambleBuff;
}