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GUAC-1103: Allow unsalted passwords from external systems.

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This commit is contained in:
Michael Jumper
2015-03-05 11:45:03 -08:00
parent 187f61b483
commit 4fb2f4e047
4 changed files with 27 additions and 18 deletions
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13
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/security/PasswordEncryptionService.java
View File

@@ -30,11 +30,16 @@ public interface PasswordEncryptionService {
/**
* Creates a password hash based on the provided username, password, and
* salt.
* salt. If the provided salt is null, only the password itself is hashed.
*
* @param password The password to hash.
* @param salt The salt to use when hashing the password.
* @return The generated password hash.
* @param password
* The password to hash.
*
* @param salt
* The salt to use when hashing the password, if any.
*
* @return
* The generated password hash.
*/
public byte[] createPasswordHash(String password, byte[] salt);

20
extensions/guacamole-auth-jdbc/modules/guacamole-auth-jdbc-base/src/main/java/org/glyptodon/guacamole/auth/jdbc/security/SHA256PasswordEncryptionService.java
View File

@@ -38,26 +38,26 @@ public class SHA256PasswordEncryptionService implements PasswordEncryptionServic
try {
// Build salted password
// Build salted password, if a salt was provided
StringBuilder builder = new StringBuilder();
builder.append(password);
builder.append(DatatypeConverter.printHexBinary(salt));
// Hash UTF-8 bytes of salted password
if (salt != null)
builder.append(DatatypeConverter.printHexBinary(salt));
// Hash UTF-8 bytes of possibly-salted password
MessageDigest md = MessageDigest.getInstance("SHA-256");
md.update(builder.toString().getBytes("UTF-8"));
return md.digest();
}
// Should not happen
catch (UnsupportedEncodingException ex) {
throw new RuntimeException(ex);
// Throw hard errors if standard pieces of Java are missing
catch (UnsupportedEncodingException e) {
throw new UnsupportedOperationException("Unexpected lack of UTF-8 support.", e);
}
// Should not happen
catch (NoSuchAlgorithmException ex) {
throw new RuntimeException(ex);
catch (NoSuchAlgorithmException e) {
throw new UnsupportedOperationException("Unexpected lack of SHA-256 support.", e);
}
}