From 7b6055d1afaf6eed5e422c342be33f34304430b3 Mon Sep 17 00:00:00 2001 From: Ben Laurie Date: Sun, 8 Jul 2001 19:42:10 +0000 Subject: [PATCH] Handle the common case first (where input size is a multiple of block size). Worth around 5% for encrypt. Slows down decrypt slightly, but I expect to regain that later. --- crypto/evp/evp_enc.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/crypto/evp/evp_enc.c b/crypto/evp/evp_enc.c index ae1a22ebb8..d723d095c1 100644 --- a/crypto/evp/evp_enc.c +++ b/crypto/evp/evp_enc.c @@ -162,8 +162,25 @@ int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, i=ctx->buf_len; bl=ctx->cipher->block_size; + if ((inl == 0) && (i != bl)) + { + *outl=0; + return 1; + } + if(i == 0 && (inl&(bl-1)) == 0) + { + if(ctx->cipher->do_cipher(ctx,out,in,inl)) + { + *outl=inl; + return 1; + } + else + { + *outl=0; + return 0; + } + } *outl=0; - if ((inl == 0) && (i != bl)) return 1; if (i != 0) { if (i+inl < bl) @@ -183,7 +200,6 @@ int EVP_EncryptUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out, int *outl, *outl+=bl; } } - // i=inl%bl; /* how much is left */ i=inl&(bl-1); inl-=i; if (inl > 0) -- 2.25.1