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Make sure that padding is used in Crypto #745

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Make sure that padding is used in Crypto #745

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12 changes: 6 additions & 6 deletions src/main/java/com/github/javafaker/Crypto.java
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Original file line number Diff line number Diff line change
Expand Up @@ -12,27 +12,27 @@ protected Crypto(Faker faker) {
}

public String md5() {
return generateString("MD5");
return generateString("MD5", "%032x");
}

public String sha1() {
return generateString("SHA-1");
return generateString("SHA-1", "%040x");
}

public String sha256() {
return generateString("SHA-256");
return generateString("SHA-256", "%064x");
}

public String sha512() {
return generateString("SHA-512");
return generateString("SHA-512", "%0128x");
}

private String generateString(String algorithm) {
private String generateString(String algorithm, String format) {
try {
MessageDigest messageDigest = MessageDigest.getInstance(algorithm);
String characters = faker.lorem().characters();
messageDigest.update(characters.getBytes(), 0, characters.length());
return new BigInteger(1, messageDigest.digest()).toString(16);
return String.format(format, new BigInteger(1, messageDigest.digest()));
} catch (NoSuchAlgorithmException noSuchAlgorithmException) {
throw new RuntimeException(noSuchAlgorithmException);
}
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8 changes: 4 additions & 4 deletions src/test/java/com/github/javafaker/CryptoTest.java
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Original file line number Diff line number Diff line change
Expand Up @@ -10,21 +10,21 @@ public class CryptoTest extends AbstractFakerTest {

@Test
public void testMd5() {
assertThat(faker.crypto().md5(), matchesRegularExpression("[a-z\\d]+"));
assertThat(faker.crypto().md5(), matchesRegularExpression("\\b[a-fA-F\\d]{32}\\b"));
}

@Test
public void testSha1() {
assertThat(faker.crypto().sha1(), matchesRegularExpression("[a-z\\d]+"));
assertThat(faker.crypto().sha1(), matchesRegularExpression("\\b[a-fA-F\\d]{40}\\b"));
}

@Test
public void testSha256() {
assertThat(faker.crypto().sha256(), matchesRegularExpression("[a-z\\d]+"));
assertThat(faker.crypto().sha256(), matchesRegularExpression("\\b[a-fA-F\\d]{64}\\b"));
}

@Test
public void testSha512() {
assertThat(faker.crypto().sha512(), matchesRegularExpression("[a-z\\d]+"));
assertThat(faker.crypto().sha512(), matchesRegularExpression("\\b[a-fA-F\\d]{128}\\b"));
}
}