simplify HMAC_CTX typedef
simplify HMAC_CTX typedef

sholsapp/cryptography,skeuomorf/cryptography,kimvais/cryptography,Lukasa/cryptography,bwhmather/cryptography,kimvais/cryptography,glyph/cryptography,skeuomorf/cryptography,Ayrx/cryptography,Ayrx/cryptography,Hasimir/cryptography,bwhmather/cryptography,dstufft/cryptography,Ayrx/cryptography,kimvais/cryptography,glyph/cryptography,dstufft/cryptography,bwhmather/cryptography,Ayrx/cryptography,kimvais/cryptography,skeuomorf/cryptography,Hasimir/cryptography,sholsapp/cryptography,Hasimir/cryptography,Lukasa/cryptography,sholsapp/cryptography,dstufft/cryptography,Hasimir/cryptography,bwhmather/cryptography,dstufft/cryptography,sholsapp/cryptography,dstufft/cryptography,skeuomorf/cryptography,Lukasa/cryptography