“.p7m” and “.p7s” files are both related to PKCS #7 (Public Key Cryptography Standards #7) and are used for secure email and digital signatures. These files encapsulate data with cryptographic signatures and certificates to verify the identity of the sender and/or the integrity of the message. 1. “.p7m” File (Signed and Encrypted Content) Description: A “.p7m” file is a digitally […]
.p7m and .p7s files are types of files associated with cryptographic signatures and encryption, specifically those based on the PKCS #7 standard. These files are commonly encountered in contexts like secure email and digitally signed documents. 1. What is a .p7m File? A .p7m file is a digitally signed or encrypted file that uses the PKCS #7 (Public Key Cryptography […]
(Chilkat is going to begin posting about the ongoing work with customers involving smart cards and tokens used for signing PDFs and XML invoices, etc.) The links below are to examples that create a .p7m signature for an Italian e-Invoice (FatturaPA) using a private key stored on a smart card. It duplicates the following OpenSSL command: openssl cms -nosmimecap -md […]
Added the mailman.P7mEncryptAttachFilname, P7mSigAttachFilename, P7sSigAttachFilename properties. These properties may be used to set the attachment filenames for signed/encrypted email to something different than the default “smime.p7m” or “smime.p7s”.