did you receive a doc or docx file with an extra .p7s extension ? it’s a digitally signed document
in order to read it in ubuntu you’ll have to transform it back to the regular .doc or .docx file
here’s how to do this:
- download the file
- open a terminal (CTRL+ALT+t)
- use cd to get to the folder where you downloaded the file
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cd Downloads |
- copy this line in the terminal (mouse right click) and modify the .p7s file name
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openssl smime -inform DER -verify -noverify -in file.docx.p7s -out file.docx |
now you have the file without the .p7s extension in the same folder you have the original file
Thank You so so much!!
You’re welcome! I’m glad I could help 🙂
Error reading S/MIME message
140602651838104:error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag:tasn_dec.c:1197:
140602651838104:error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error:tasn_dec.c:374:Type=PKCS7_ISSUER_AND_SERIAL
140602651838104:error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error:tasn_dec.c:697:Field=issuer_and_serial, Type=PKCS7_SIGNER_INFO
140602651838104:error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error:tasn_dec.c:669:Field=signer_info, Type=PKCS7_SIGNED
140602651838104:error:0D08303A:asn1 encoding routines:ASN1_TEMPLATE_NOEXP_D2I:nested asn1 error:tasn_dec.c:697:
140602651838104:error:0D08403A:asn1 encoding routines:ASN1_TEMPLATE_EX_D2I:nested asn1 error:tasn_dec.c:560:Field=d.sign, Type=PKCS7
File is not opened!
— error message —
Error reading S/MIME message
140437807855424:error:0D0680A8:asn1 encoding routines:asn1_check_tlen:wrong tag:crypto/asn1/tasn_dec.c:1112:
140437807855424:error:0D07803A:asn1 encoding routines:asn1_item_embed_d2i:nested asn1 error:crypto/asn1/tasn_dec.c:274:Type=PKCS7
GUI option
https://www.hohnstaedt.de/xca/
sudo apt-get install xca
I was also not able to find a Linux tool that is able to open that file type after a quick google research. However, there exist some tools for Windows (e.g. Cryptigo pViewer ) or OSX.