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+Non-constant time crypto code is dangerous.
+
+1. [Dude, is my code constant time?](https://eprint.iacr.org/2016/1123.pdf)
+1. [proposal: math/big: support for constant-time arithmetic](https://github.com/golang/go/issues/20654)
+1. [crypto/elliptic: deprecate big.Int interface](https://github.com/golang/go/issues/52182)
+1. [proposal: a new crypto/ecdh package that exposes a safe, []byte-based API for ECDH](https://github.com/golang/go/issues/52221)
+1. [cmd/compile: use devirtualization in escape analysis](https://github.com/golang/go/issues/33160)
+1. [cmd/compile: inlining after devirtualization](https://github.com/golang/go/issues/52193)
+1. [crypto/elliptic: automatically upgrade CurveParams for known curves and deprecate custom ones](https://github.com/golang/go/issues/34648)