diff options
Diffstat (limited to 'crypto/engine/vendor_defns/atalla.h')
-rw-r--r-- | crypto/engine/vendor_defns/atalla.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/crypto/engine/vendor_defns/atalla.h b/crypto/engine/vendor_defns/atalla.h new file mode 100644 index 0000000000..8111649c54 --- /dev/null +++ b/crypto/engine/vendor_defns/atalla.h @@ -0,0 +1,61 @@ +/* This header declares the necessary definitions for using the exponentiation + * acceleration capabilities of Atalla cards. The only cryptographic operation + * is performed by "ASI_RSAPrivateKeyOpFn" and this takes a structure that + * defines an "RSA private key". However, it is really only performing a + * regular mod_exp using the supplied modulus and exponent - no CRT form is + * being used. Hence, it is a generic mod_exp function in disguise, and we use + * it as such. + * + * Thanks to the people at Atalla for letting me know these definitions are + * fine and that they can be reproduced here. + * + * Geoff. + */ + +typedef struct ItemStr + { + unsigned char *data; + int len; + } Item; + +typedef struct RSAPrivateKeyStr + { + void *reserved; + Item version; + Item modulus; + Item publicExponent; + Item privateExponent; + Item prime[2]; + Item exponent[2]; + Item coefficient; + } RSAPrivateKey; + +/* Predeclare the function pointer types that we dynamically load from the DSO. + * These use the same names and form that Ben's original support code had (in + * crypto/bn/bn_exp.c) unless of course I've inadvertently changed the style + * somewhere along the way! + */ + +typedef int tfnASI_GetPerformanceStatistics(int reset_flag, + unsigned int *ret_buf); + +typedef int tfnASI_GetHardwareConfig(long card_num, unsigned int *ret_buf); + +typedef int tfnASI_RSAPrivateKeyOpFn(RSAPrivateKey * rsaKey, + unsigned char *output, + unsigned char *input, + unsigned int modulus_len); + +/* These are the static string constants for the DSO file name and the function + * symbol names to bind to. Regrettably, the DSO name on *nix appears to be + * "atasi.so" rather than something more consistent like "libatasi.so". At the + * time of writing, I'm not sure what the file name on win32 is but clearly + * native name translation is not possible (eg libatasi.so on *nix, and + * atasi.dll on win32). For the purposes of testing, I have created a symbollic + * link called "libatasi.so" so that we can use native name-translation - a + * better solution will be needed. */ +static const char *ATALLA_LIBNAME = "atasi"; +static const char *ATALLA_F1 = "ASI_GetHardwareConfig"; +static const char *ATALLA_F2 = "ASI_RSAPrivateKeyOpFn"; +static const char *ATALLA_F3 = "ASI_GetPerformanceStatistics"; + |