go-pec

Posta Elettronica Certificata (PEC) in golang

In this project we parse the Italian Posta Elettronica Certificata (PEC) e-mail format.

The PEC MIME is organized as a S/MIME containing the message and two attachments: daticert.xml and the original email as an .eml:

multipart/mixed
├── multipart/alternative
│   ├── text/plain (PEC notification text)
│   ├── text/html (PEC notification in HTML format)
├── application/xml (daticert.xml)
├── message/rfc822 (original email as an .eml attachment)
├── application/pkcs7-signature (smime.p7s)

Tests

go test -v ./pec

Parse PEC

Example how to read a PEC from an .eml file and verify it:

go build -o pec-parser cmd/pec/main.go
./pec-parser verify -in your_pec_file.eml

To verify the PEC signature we use

// read email
email := ReadEmail("yourEmail.eml")

// verify email
if VerifySMIMEWithOpenSSL(email) != nil {
    log.Fatalf("failed to verify email")
}