Encrypted forum (Offline cipher RSA 768-2048) CryptBB

RSA (Rivest-Shamir-Adleman) 768-2048, one of the best asymmetric ciphers at present time (2012), can be used for exchanging passwords throught unsecure area.

For example: You need to communicate with Your remote friend securely. At first, You create key pair, using current function, save private (secret) key to Your password keeper (KeePass, etc) and transmit public (unsecret) key to Your friend. He generates very very long cryptographic secure (MT 19937) random password and saves it to his password keeper. Then he encrypts password with Your public key, using asymmetric cipher, and transmits encrypted password to You. Text encrypted with Your public key can be decrypted only with Your private key. You receive encrypted password, decrypt it with Your private key, using asymmetric cipher, and save decrypted password to Your password keeper. Now you can use symmetric cipher (AES-256 CTR) and transmit your messages encrypted with generated password throught unsecure area.


To encrypt and decrypt the text with RSA cipher:
1) At first, press this button:    Enveilize the key Optionally: Select key length:  Exponent:
Attention: This process can take several seconds, do not stop scenario executing.

2) This is generated private (secret) key:

3) This is generated public (unsecret) key:

4) Then type uncrypted text here:

5) Press this button:    Enveilize the text   Encapsulate the text

6) This is encrypted text:

7) At the end, press this button:    Deveilize the text   Decapsulate the text

8) This is decrypted text:

To copy key or password to the clipboard, place cursor to the text area, press Ctrl+A, then Ctrl+C.

You can save this HTML-file to Your computer Authors: VanDerSaAr & Tom Wu © v3.14.2.1