RSA cryptography implementation

[gaminn]

Hi, is there RSA-512 cryptography (or maybe another asymmetric cryptography system) implementation for nrf51 or some implementation that can be easily ported to nrf51?

[RK]

ARM bought PolarSSL and rebranded it as mbedTLS, that has an RSA implementation in it. Don't know what the keysize limit is, but the whole thing is free(*) and since ARM bought it, you'd think a port wouldn't be very hard.

(*) it's free but is released under two different licenses so you can determine which if either is unencumbered enough for your use.