How soon will the current encrypt technologies (RSA, 256-bit AES, PGP, etc.) be obsolete at all? With the advance of technology, we're encouraged to believe that the current (or the upcoming) encrypt technologies will be unbeatable (ex.: Blu-ray protection, which have HDCP, which is based on encrypt algorithms), but the history showed us that this statement isn't true.

Many secrets have been broken and other cryptography methods had to be developed in order to keep secrets in secret. When the quantum computers would be accessible to regular citizens, only quantum cryptography may survive...

Nowadays, cryptography strength became too important. Even more with scandals regarding the US Government with its PRISM program, which can collect sensitive data from regular citizens.

To have an idea, the Brazilian government is upset regarding the surveillance of US government and wants to create its own Internet and encrypted email service to all the Brazilian. The Argentinian and German governments share similar ideas.

Note.: Reg. stands for Regarding in the title