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Fix build for dropbearkey and ecdsa with certain options

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--HG--
branch : ecc
This commit is contained in:
Matt Johnston 2013-05-09 23:24:58 +08:00
parent 95a21c8fd7
commit 226671b550
2 changed files with 44 additions and 19 deletions
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57
dropbearkey.c
View File

@ -76,7 +76,7 @@ static void printhelp(char * progname) {
" dss\n"
#endif
#ifdef DROPBEAR_ECDSA
" ecdsa\n"
" ecdsa\n"
#endif
"-f filename Use filename for the secret key\n"
"-s bits Key size in bits, should be a multiple of 8 (optional)\n"
@ -200,23 +200,44 @@ int main(int argc, char ** argv) {
}
// TODO: put RSA and DSS size checks into genrsa.c etc
if (keytype == DROPBEAR_SIGNKEY_DSS && bits != 1024) {
fprintf(stderr, "DSS keys have a fixed size of 1024 bits\n");
exit(EXIT_FAILURE);
} else if (bits < 512 || bits > 4096 || (bits % 8 != 0)) {
fprintf(stderr, "Bits must satisfy 512 <= bits <= 4096, and be a"
" multiple of 8\n");
exit(EXIT_FAILURE);
}
} else {
if (keytype == DROPBEAR_SIGNKEY_DSS) {
bits = DSS_DEFAULT_SIZE;
} else if (keytype == DROPBEAR_SIGNKEY_RSA) {
bits = RSA_DEFAULT_SIZE;
} else if (keytype == DROPBEAR_SIGNKEY_ECDSA_KEYGEN) {
bits = ECDSA_DEFAULT_SIZE;
} else {
exit(EXIT_FAILURE); /* not reached */
switch (keytype) {
#ifdef DROPBEAR_RSA
case DROPBEAR_SIGNKEY_RSA:
if (bits < 512 || bits > 4096 || (bits % 8 != 0)) {
fprintf(stderr, "Bits must satisfy 512 <= bits <= 4096, and be a"
" multiple of 8\n");
exit(EXIT_FAILURE);
}
break;
#endif
#ifdef DROPEAR_DSS
case DROPBEAR_SIGNKEY_DSS:
if (bits != 1024) {
fprintf(stderr, "DSS keys have a fixed size of 1024 bits\n");
exit(EXIT_FAILURE);
}
#endif
// pass. ecdsa handles checks itself
}
switch (keytype) {
#ifdef DROPBEAR_RSA
case DROPBEAR_SIGNKEY_RSA:
bits = RSA_DEFAULT_SIZE;
break;
#endif
#ifdef DROPBEAR_DSS
case DROPBEAR_SIGNKEY_DSS:
bits = DSS_DEFAULT_SIZE;
break;
#endif
#ifdef DROPBEAR_ECDSA
case DROPBEAR_SIGNKEY_ECDSA_KEYGEN:
bits = ECDSA_DEFAULT_SIZE;
break;
#endif
default:
exit(EXIT_FAILURE); /* not reached */
}
}

4
ecdsa.h
View File

@ -5,6 +5,8 @@
#include "buffer.h"
#include "signkey.h"
#ifdef DROPBEAR_ECDSA
#ifdef DROPBEAR_ECC_256
#define ECDSA_DEFAULT_SIZE 256
#elif DROPBEAR_ECC_384
@ -25,4 +27,6 @@ enum signkey_type ecdsa_signkey_type(ecc_key * key);
void buf_put_ecdsa_sign(buffer *buf, ecc_key *key, buffer *data_buf);
int buf_ecdsa_verify(buffer *buf, ecc_key *key, buffer *data_buf);
#endif
#endif // _ECDSA_H_