Tag Info

Hot answers tagged

2

RFC 2313 specifies the RSAPrivateKey ASN1 structure as a SEQUENCE containing the INTEGERs $0$; $n$; $e$; $d$; $p$; $q$; $d\bmod(p-1)$; $d\bmod(q-1)$; $q^{-1}\bmod p$. The PEM format consists of such a structure encoded as Base64 and framed by the typical BEGIN/END RSA PRIVATE KEY header and footer lines. Thus, you can use any ASN1 library you like to ...


1

The client generates a random symmetric key and encrypts it with the public key. This public key needs to be trusted. Make sure you use a good padding mode, OAEP should do it. Send to server, server decrypts it with the private key. Eh, that's it. No forward security though, the session can be decrypted if the RSA scheme is broken or if the private key is ...


1

The standard algorithm used for RSA encryption and decryption is exponentiation by squaring. The basic idea is to write the exponent out in binary. For example, for $d = 4267793$, $$\begin{aligned} 4267793 &= 10000010001111100010001_2 \\ &= 2^{22} + 2^{16} + 2^{12} + 2^{11} + 2^{10} + 2^9 + 2^8 + 2^4 + 2^0.\end{aligned}$$ Now, given some RSA ...



Only top voted, non community-wiki answers of a minimum length are eligible