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Fix some typose in the i2d/d2i functions that

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call the i2c/c2i (they were not using the
content length for the headers).

Fix ASN1 long form tag encoding. This never
worked but it was never tested since it is
only used for tags > 30.

New options to smime program to allow the
PKCS#7 format to be specified and the content
supplied externally.
This commit is contained in:
Dr. Stephen Henson 2000-07-10 18:33:05 +00:00
parent 27d7260075
commit 094fe66d9f
7 changed files with 75 additions and 13 deletions
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10
CHANGES
View File

@ -4,6 +4,16 @@
Changes between 0.9.5a and 0.9.6 [xx XXX 2000]
*) New options to smime application. -inform and -outform
allow alternative formats for the S/MIME message including
PEM and DER. The -content option allows the content to be
specified separately. This should allow things like Netscape
form signing output easier to verify.
[Steve Henson]
*) Fix the ASN1 encoding of tags using the 'long form'.
[Steve Henson]
*) New ASN1 functions, i2c_* and c2i_* for INTEGER and BIT
STRING types. These convert content octets to and from the
underlying type. The actual tag and length octets are

2
apps/apps.c
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@ -164,6 +164,8 @@ int str2fmt(char *s)
return(FORMAT_PEM);
else if ((*s == 'N') || (*s == 'n'))
return(FORMAT_NETSCAPE);
else if ((*s == 'S') || (*s == 's'))
return(FORMAT_SMIME);
else if ((*s == '1')
|| (strcmp(s,"PKCS12") == 0) || (strcmp(s,"pkcs12") == 0)
|| (strcmp(s,"P12") == 0) || (strcmp(s,"p12") == 0))

1
apps/apps.h
View File

@ -158,6 +158,7 @@ STACK_OF(X509) *load_certs(BIO *err, char *file, int format);
#define FORMAT_PEM 3
#define FORMAT_NETSCAPE 4
#define FORMAT_PKCS12 5
#define FORMAT_SMIME 6
#define NETSCAPE_CERT_HDR "certificate"

58
apps/smime.c
View File

@ -87,7 +87,7 @@ int MAIN(int argc, char **argv)
char *inmode = "r", *outmode = "w";
char *infile = NULL, *outfile = NULL;
char *signerfile = NULL, *recipfile = NULL;
char *certfile = NULL, *keyfile = NULL;
char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
EVP_CIPHER *cipher = NULL;
PKCS7 *p7 = NULL;
X509_STORE *store = NULL;
@ -102,6 +102,7 @@ int MAIN(int argc, char **argv)
char *passargin = NULL, *passin = NULL;
char *inrand = NULL;
int need_rand = 0;
int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
args = argv + 1;
ret = 1;
@ -205,11 +206,26 @@ int MAIN(int argc, char **argv)
args++;
infile = *args;
} else badarg = 1;
} else if (!strcmp (*args, "-inform")) {
if (args[1]) {
args++;
informat = str2fmt(*args);
} else badarg = 1;
} else if (!strcmp (*args, "-outform")) {
if (args[1]) {
args++;
outformat = str2fmt(*args);
} else badarg = 1;
} else if (!strcmp (*args, "-out")) {
if (args[1]) {
args++;
outfile = *args;
} else badarg = 1;
} else if (!strcmp (*args, "-content")) {
if (args[1]) {
args++;
contfile = *args;
} else badarg = 1;
} else badarg = 1;
args++;
}
@ -292,9 +308,12 @@ int MAIN(int argc, char **argv)
if(operation != SMIME_SIGN) flags &= ~PKCS7_DETACHED;
if(flags & PKCS7_BINARY) {
if(operation & SMIME_OP) inmode = "rb";
else outmode = "rb";
if(operation & SMIME_OP) {
if(flags & PKCS7_BINARY) inmode = "rb";
if(outformat == FORMAT_ASN1) outmode = "wb";
} else {
if(flags & PKCS7_BINARY) outmode = "wb";
if(informat == FORMAT_ASN1) inmode = "rb";
}
if(operation == SMIME_ENCRYPT) {
@ -383,10 +402,28 @@ int MAIN(int argc, char **argv)
p7 = PKCS7_sign(signer, key, other, in, flags);
BIO_reset(in);
} else {
if(!(p7 = SMIME_read_PKCS7(in, &indata))) {
if(informat == FORMAT_SMIME)
p7 = SMIME_read_PKCS7(in, &indata);
else if(informat == FORMAT_PEM)
p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL);
else if(informat == FORMAT_ASN1)
p7 = d2i_PKCS7_bio(in, NULL);
else {
BIO_printf(bio_err, "Bad input format for PKCS#7 file\n");
goto end;
}
if(!p7) {
BIO_printf(bio_err, "Error reading S/MIME message\n");
goto end;
}
if(contfile) {
BIO_free(indata);
if(!(indata = BIO_new_file(contfile, "rb"))) {
BIO_printf(bio_err, "Can't read content file %s\n", contfile);
goto end;
}
}
}
if(!p7) {
@ -422,7 +459,16 @@ int MAIN(int argc, char **argv)
if(to) BIO_printf(out, "To: %s\n", to);
if(from) BIO_printf(out, "From: %s\n", from);
if(subject) BIO_printf(out, "Subject: %s\n", subject);
SMIME_write_PKCS7(out, p7, in, flags);
if(outformat == FORMAT_SMIME)
SMIME_write_PKCS7(out, p7, in, flags);
else if(outformat == FORMAT_PEM)
PEM_write_bio_PKCS7(out,p7);
else if(outformat == FORMAT_ASN1)
i2d_PKCS7_bio(out,p7);
else {
BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
goto end;
}
}
ret = 0;
end:

2
crypto/asn1/a_bitstr.c
View File

@ -75,7 +75,7 @@ int i2d_ASN1_BIT_STRING(ASN1_BIT_STRING *a, unsigned char **pp)
len = i2c_ASN1_BIT_STRING(a, NULL);
ret=ASN1_object_size(0,len,V_ASN1_BIT_STRING);
if(pp) {
ASN1_put_object(pp,0,ret,V_ASN1_BIT_STRING,V_ASN1_UNIVERSAL);
ASN1_put_object(pp,0,len,V_ASN1_BIT_STRING,V_ASN1_UNIVERSAL);
i2c_ASN1_BIT_STRING(a, pp);
}
return ret;

2
crypto/asn1/a_int.c
View File

@ -80,7 +80,7 @@ int i2d_ASN1_INTEGER(ASN1_INTEGER *a, unsigned char **pp)
len = i2c_ASN1_INTEGER(a, NULL);
ret=ASN1_object_size(0,len,V_ASN1_INTEGER);
if(pp) {
ASN1_put_object(pp,0,ret,V_ASN1_INTEGER,V_ASN1_UNIVERSAL);
ASN1_put_object(pp,0,len,V_ASN1_INTEGER,V_ASN1_UNIVERSAL);
i2c_ASN1_INTEGER(a, pp);
}
return ret;

13
crypto/asn1/asn1_lib.c
View File

@ -181,7 +181,7 @@ void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
int xclass)
{
unsigned char *p= *pp;
int i;
int i, ttag;
i=(constructed)?V_ASN1_CONSTRUCTED:0;
i|=(xclass&V_ASN1_PRIVATE);
@ -190,12 +190,15 @@ void ASN1_put_object(unsigned char **pp, int constructed, int length, int tag,
else
{
*(p++)=i|V_ASN1_PRIMITIVE_TAG;
while (tag > 0x7f)
for(i = 0, ttag = tag; ttag > 0; i++) ttag >>=7;
ttag = i;
while(i-- > 0)
{
*(p++)=(tag&0x7f)|0x80;
tag>>=7;
p[i] = tag & 0x7f;
if(i != (ttag - 1)) p[i] |= 0x80;
tag >>= 7;
}
*(p++)=(tag&0x7f);
p += ttag;
}
if ((constructed == 2) && (length == 0))
*(p++)=0x80; /* der_put_length would output 0 instead */