[SalesForce] How decrypt MD5

I'm try decrypt one string in format MD5 but I have not been able, this the code:

String e = 'test@testcom';
Blob b = Crypto.generateDigest('MD5', Blob.valueOf(e));
System.debug(EncodingUtil.base64Encode(b));
String result = EncodingUtil.convertToHex(b);
System.debug(result);
Blob b2 = EncodingUtil.convertFromHex(result);
String e2 = EncodingUtil.base64Encode(b2);

Best Answer

By it's very nature you cannot decrypt MD5. It's a one way hash algorithm. There are some sites that claim to decrypt certain phrases but all they do is store known phrases to return them.

Reference

Md5 (Message Digest 5) is a cryptographic function that allows you to make a 128-bits (32 caracters) "hash" from any string taken as input, no matter the length (up to 2^64 bits). This function is irreversible, you can't obtain the plaintext only from the hash. The only way to decrypt your hash is to compare it with a database using our online decrypter.

Related Solutions

[SalesForce] Subject line AMPscript issue

I would start with a simple use-case to make sure the decryption is the true issue. Something like this perhaps:

%%[

var @first_name_enc, @first_name_plain, @first_name_dec, @null
set @first_name_plain = "John"
/* or if the first name is a personalization string in the sending audience */
/* set @first_name_plain = [first_name] */
set @password = "A4DF6AF2"
set @first_name_enc = EncryptSymmetric(@first_name_plain, "des;mode=cbc", @null, @password, @null, @null, @null, @null)

]%%
<br>@first_name_plain: %%=v(@first_name_plain)=%%
<br>@first_name_enc: %%=v(@first_name_enc)=%%
%%[

set @first_name_dec = DecryptSymmetric(@first_name_enc, "des;mode=cbc", @null, @password, @null, @null, @null, @null)

]%%
<br>@first_name_dec: %%=v(@first_name_dec)=%%

Results:

@first_name_plain: John 
@first_name_enc: Du5zgS1AF3w= 
@first_name_dec: John

You can un-comment the second @first_name_plain declaration if the first name is a personalization string and not a variable set somewhere else in the AMPScript block.

Best Answer

Related Solutions

[SalesForce] Subject line AMPscript issue

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