Saturday, 15 February 2014

Decrypting some code with AES-128 in OFB mode?

Decrypting some code with AES-128 in OFB mode?



1.PHP: mcrypt_decrypt - Manual

Description:Caution, MCRYPT_RIJNDAEL_256 is not equivalent to AES_256. The
way to make RIJNDAEL be decrypted from AES with openssl is to use
MCRYPT_RIJNDAEL_128 and padd the ...



2.Block cipher mode of operation - Wikipedia, the free ...

Description:History and standardization . The earliest modes of operation,
ECB, CBC, OFB, and CFB (see below for all), date back to 1981 and were
specified in DES Modes of Operation



3.FIPS 81 - Des Modes of Operation - Information Technology ...

Description:FIPS PUB 81. Federal Information Processing Standards
Publication 81 1980 December 2 Specifications for DES MODES OF OPERATION
CONTENTS 1. INTRODUCTION ...



4.C S R C - Cryptographic Toolkit - NIST.gov - Computer ...

Description:/ CryptoToolkit. FIPS. NIST is pleased to announce the
approval of the Federal Information Processing Standard (FIPS) for the
Advanced Encryption Standard, ...



5.A Fast and Easy to Use AES Library - CodeProject

Description:28-12-2011 · This article, along with any associated source
code and files, is licensed under The Code Project Open License (CPOL)



6.How to choose an AES encryption mode (CBC ECB CTR OCB CFB ...

Description:Which of them are preferred in which circumstances? I'd like
to see the list of evaluation crtieria for the various modes, and maybe a
discussion of the applicability ...



7.Applied Crypto++: Block Ciphers - CodeProject

Description:06-04-2008 · Output Feedback. Figure 11 shows the Output
Feedback (OFB) mode. In this mode, the output of the encryption is tapped
before the final XOR. The tapped ...



8.encryption - How to encrypt and decrypt data in Java ...

Description:Half a year ago I wrote a small encryptor/decryptor using
BouncyCastle. It allows you to choose block size, key size, encryption
mode (ECB, CBC, CFB, OFB) and some ...



9.OpenSSL: Documents, EVP_EncryptInit(3) - OpenSSL: The Open ...

Description:GCM Mode. For GCM mode ciphers the behaviour of the EVP
interface is subtly altered and several GCM specific ctrl operations are
supported. To specify any additional ...



10.PHP: mcrypt_encrypt - Manual

Description:In the other notes there are some misconceptions about crypto
and the IV, especially for CBC mode. The most important point: Encryption
DOES NOT provide any proof of ...

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