br-crypto

br-crypto is used at run time in 6 crates.

Depender (with downloads and own rev deps)			br-crypto version
160	1	br-web		^0.1.18
		br-email		^0.1.15
		br-oss		^0.1.14
		br-ocr		^0.1.14
		br-wechat		^0.1.10
		br-dxf		^0.1.18