From 1684c8f398922065a97e7da4dac4ac6a33cc5218 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Parm=C3=A9nides=20GV?= Date: Wed, 9 Apr 2014 16:03:55 +0200 Subject: Back to the standard "app" module. This return to "app" instead of "bitmask_android" is due to this reading: https://developer.android.com/sdk/installing/studio-build.html#projectStructure I'll have to tweak the final apk name in build.gradle. --- app/openssl/crypto/bn/divtest.c | 41 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 41 insertions(+) create mode 100644 app/openssl/crypto/bn/divtest.c (limited to 'app/openssl/crypto/bn/divtest.c') diff --git a/app/openssl/crypto/bn/divtest.c b/app/openssl/crypto/bn/divtest.c new file mode 100644 index 00000000..d3fc688f --- /dev/null +++ b/app/openssl/crypto/bn/divtest.c @@ -0,0 +1,41 @@ +#include +#include + +static int Rand(n) +{ + unsigned char x[2]; + RAND_pseudo_bytes(x,2); + return (x[0] + 2*x[1]); +} + +static void bug(char *m, BIGNUM *a, BIGNUM *b) +{ + printf("%s!\na=",m); + BN_print_fp(stdout, a); + printf("\nb="); + BN_print_fp(stdout, b); + printf("\n"); + fflush(stdout); +} + +main() +{ + BIGNUM *a=BN_new(), *b=BN_new(), *c=BN_new(), *d=BN_new(), + *C=BN_new(), *D=BN_new(); + BN_RECP_CTX *recp=BN_RECP_CTX_new(); + BN_CTX *ctx=BN_CTX_new(); + + for(;;) { + BN_pseudo_rand(a,Rand(),0,0); + BN_pseudo_rand(b,Rand(),0,0); + if (BN_is_zero(b)) continue; + + BN_RECP_CTX_set(recp,b,ctx); + if (BN_div(C,D,a,b,ctx) != 1) + bug("BN_div failed",a,b); + if (BN_div_recp(c,d,a,recp,ctx) != 1) + bug("BN_div_recp failed",a,b); + else if (BN_cmp(c,C) != 0 || BN_cmp(c,C) != 0) + bug("mismatch",a,b); + } +} -- cgit v1.2.3