Can't cryptography be both a science (or branch of mathematics) and an engineering discipline?
The science part of it will continue to provide methods of greater robustness and security, laden with increasingly better and broader security proofs and properties.
The engineering side of it will continue to seek and cling onto any slightest toehold afforded by mis-steps in design, implementation, protocol, all the way up to UI. Much of this is not, at least pre-emptively, subject to mathematical analysis.
This seems to have been a recurring theme for as long as cryptography has been around rather than some specific aspect '90s vs '10s crypto.
The science part of it will continue to provide methods of greater robustness and security, laden with increasingly better and broader security proofs and properties.
The engineering side of it will continue to seek and cling onto any slightest toehold afforded by mis-steps in design, implementation, protocol, all the way up to UI. Much of this is not, at least pre-emptively, subject to mathematical analysis.
This seems to have been a recurring theme for as long as cryptography has been around rather than some specific aspect '90s vs '10s crypto.