> Blowfish is a 8 byte block cipher so for shorter strings I'll need to pad > the byte array, and for longer strings I'll need to make it use cipher > block > chaining: > ( > https://en.wikipedia.org/wiki/Block_cipher_modes_of_operation#Cipher-block_chaining_.28CBC.29 > ) > > Ok, I imagined something like that. Thanks for the explanation. For my usecase, I think this is not the more critical thing since I would use a 8 character password for sure :)
> > > If you change #decryptString:with: to: > > Blowfish class>>decryptString: aString with: aKey > |decryptedData | > decryptedData := (self new ecbDecrypt: aString asByteArray with: aKey > asByteArray ). > ^String fromByteArray: decryptedData asByteArray . > > Then this workspace code should work: > > | enc encryptedString dkey decrString | > key:='mySecretKey'. > enc:=Blowfish encryptString:'12345678' with: key. > encryptedString := enc asByteArray asString. > Transcript show: ' encrypted: ', encryptedString; cr. > decrString:=Blowfish decryptString: encryptedString with: key. > Transcript show: ' decrypted: ', decrString; cr. > > > Thanks!! That worked. Now...there is no problem with the encoding then? Because I would need to store/retrieve the string from a file stream...so I didn't know if I should use a TextConverter or not. Thanks in advance, > But with the password 'test' it will always fail because I'm not yet > padding > the byte array to a multiple of 8 bytes before encrypting it. > > > > Thanks for your patience > > > Paul > > > > -- > View this message in context: > http://forum.world.st/Pharo-dev-Recommendation-for-password-encryption-tp4698499p4698789.html > Sent from the Pharo Smalltalk Developers mailing list archive at > Nabble.com. > > -- Mariano http://marianopeck.wordpress.com
