Reference > Functions reference > Container functions > CryptDecrypt
Decrypts container data with the specified key and returns text or container data.
container - container data returned by the CryptEncrypt function.
key - any text expression or field that contains the same key that was used to encrypt container.
Data type returned 
text, container
Originated in 
FileMaker Pro 16.0
This function accepts container data created by the CryptEncrypt function and the same key that was used to encrypt the data. The decrypted data is returned as the same type (text or container data) it was before encryption.
This function is not supported in runtime solutions and returns "?".
Example 1 
Returns This needs protection, the text that was encrypted using CryptEncrypt with the same key.
CryptDecrypt (
CryptEncrypt ( "This needs protection" ; "My secret password" ) ;
"My secret password"
Related topics 
Functions reference (category list)
Functions reference (alphabetical list)
About formulas
About functions
Defining calculation fields
Using operators in formulas