System.DmlException: Upsert failed. First exception on row 0; first error: STRING_TOO_LONG, password: data value too large: *** encrypted text *** (max length=15): [password__c]


while inserting a encrypted field as password



public class newformcntrl {

     public account accs{get;set;}
     public string id{set;get;}
   public account acc{get;set;}
    Blob cryptoKey = Blob.valueOf('380db410e8b11fa9');

    

    public newformcntrl (ApexPages.StandardController controller) 
    {

        accs=(account)Controller.getRecord();
        id=apexpages.currentpage().getparameters().get('id');

    }
    
    
     public pagereference savee()
    {   
          if(accs.password__c!=null)
          {
             Blob data = Blob.valueOf(accs.password__c);
             Blob encryData = Crypto.encryptWithManagedIV('AES128', cryptoKey , data );
             String bData = EncodingUtil.base64Encode(encryptedData);
             accs.password__c= bData;


             Blob dta3 = EncodingUtil.base64Decode(accs.password__c);
             Blob decryptedData = Crypto.decryptWithManagedIV('AES128', cryptoKey , dta3);
             String dryptData = decryptedData.toString();


          }

        upsert accs;
        pagereference p=new pagereference('/apex/newaccview?id='+acc.id);
        p.SetRedirect(true); 
        return p;
    }
   

}