CryptMD5 (Silverpeas Core 6.3 API)

java.lang.Object
- org.silverpeas.core.security.encryption.cipher.CryptMD5

```
public class CryptMD5
extends Object
```
The MD5 algorithm (Message Digest 5).
It is a one-way hashing function that compute a 128-bit digest of a message (generally a file). It is not for encrypting password but for generating a digest of a content in order to sign it and to ensure its integrity.
A first flaw (possibility to create collisions at the demand) was discovered in 1996. In 2004, a chinese team broke it by discovering full collisions. Since, it was replaced first by the SHA-1 algorithm and now the SHA-2 algorithms are used (SHA-256, SHA-512).

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static String`	`encrypt(File file)`	Computes the MD5 hash of a file.
`static String`	`encrypt(String original)`	Encrypts the specified text in MD5.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - encrypt
```
public static String encrypt(String original)
                      throws SilverpeasRuntimeException
```
    Encrypts the specified text in MD5.
    
    Parameters:
    
    original - the text to encrypt
    
    Returns:
    
    the digest of the text in a 32-bits hexadecimal.
    
    Throws:
    
    SilverpeasRuntimeException - if an error occurs.
  - encrypt
```
public static String encrypt(File file)
                      throws SilverpeasRuntimeException
```
    Computes the MD5 hash of a file.
    
    Parameters:
    
    file - the file to be MD5 hashed.
    
    Returns:
    
    the MD5 hash as a String.
    
    Throws:
    
    SilverpeasRuntimeException - if an error occurs.