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AES - the block cipher - requires a key of 128, 192 or 256 bit, i.e. 16, 24 or 32 bytes. AES is a standardized form of Rijndael, which has been designed with key increments of 32 bit. Jul 26, 2021 No. AES - the block cipher - requires a key of 128, 192 or 256 bit, i.e. 16, 24 or 32 bytes. AES is a standardized form of Rijndael, which has been designed with key increments of 32 bit. Aes key generator. Key Generator, Key generator. Back This page generates a wide range of encryption keys based on a pass phrase. Passphrase: aes-128-cbc: aes-128-cfb: aes-128-cfb1: Below is a Base64 Encoded AES-256 key which was been generated using the secure javax KeyGenerator.

Implementation for php 7.x was added

As you see this implementation is using openssl instead of mcrypt and the result of the encryption/decryption is not compatible with each other.
The mcrypt function will be deprecated feature in PHP 7.1.x

What is AES encryption?

It is a webtool to encrypt and decrypt text using AES encryption algorithm. You can chose 128, 192 or 256-bit long key size for encryption and decryption. The result of the process is downloadable in a text file.

How to use AES encryption?

If you want to encrypt a text put it in the white textarea above, set the key of the encryption then push the Encrypt button.
The result of the encryption will appear in base64 encoded to prevent character encoding problems.
If you want to decrypt a text be sure it is in base64 encoded and is encrypted with AES algorithm!
Put the encrypted text in the white textarea, set the key and push the Decrypt button.

When is helpful to use AES encryption?

When you want to encrypt a confidential text into a decryptable format, for example when you need to send sensitive data in e-mail.
The decryption of the encrypted text it is possible only if you know the right password.

What is AES encryption?

AES (acronym of Advanced Encryption Standard) is a symmetric encryption algorithm.
The algorithm was developed by two Belgian cryptographer Joan Daemen and Vincent Rijmen.
AES was designed to be efficient in both hardware and software, and supports a block length of 128 bits and key lengths of 128, 192, and 256 bits.

How secure is AES encryption algorithm?

Aes 128 Random Keyword

AES encryption is used by U.S. for securing sensitive but unclassified material, so we can say it is enough secure.