Dear Anton, On Tue, Oct 15, 2019 at 9:00 AM Anton Schmidt <schmidt.a...@gmail.com> wrote:
> I've got an error in openssl library function when trying to read a pkcs7 > message > > [schmidt@localhost ssl]$ ./bin/openssl version > OpenSSL 3.0.0-dev xx XXX xxxx (Library: OpenSSL 3.0.0-dev xx XXX xxxx) > [schmidt@localhost ssl]$ ./bin/openssl pkcs7 -in > /tmp/55b0822e148e4ffaa0bd9ebc41814f54.der -inform DER -print_certs > unable to load PKCS7 object > 40:57:70:89:A5:7F:00:00:error:asn1 encoding routines:(unknown > function):sequence length > mismatch:crypto/asn1/tasn_dec.c:388:Type=PKCS7_ENVELOPE > 40:57:70:89:A5:7F:00:00:error:asn1 encoding routines:(unknown > function):nested asn1 error:crypto/asn1/tasn_dec.c:629: > 40:57:70:89:A5:7F:00:00:error:asn1 encoding routines:(unknown > function):nested asn1 error:crypto/asn1/tasn_dec.c:479:Field=d.enveloped, > Type=PKCS7 > > openssl asn1parse and other online tools correctly parse and display ASN1 > of pkcs7 envelopedData. > > I want to run openssl utility under debugger to see what is happening > inside the library function. > > I've found OpenSSL library source code https://github.com/openssl/openssl but > not the sources for command line utility. Are the sources available? > > Or as an option is there a guide how I could write a simple pkcs7 > envelopedData reader to debug the library function? > You can build openssl using the following steps: ./config -ggdb make and then debug LD_LIBRARY_PATH=. gdb --args apps/openssl ... -- SY, Dmitry Belyavsky
