decrypt_pass..._session_key(9)

🎀 NAME 🎀

okay so bestie, welcome to the decrypt_pass..._session_key(9) page from the Kernel API Manual — not me being obsessed with a kernel function, but here we are 💅. This is the manual for decrypt_passphrase_encrypted_session_key: decrypt the session key with the given auth_tok. That's the NAME tea, no cap ☕✨

✨ SYNOPSIS ✨

the way this signature ate:

int decrypt_passphrase_encrypted_session_key (struct ecryptfs_auth_tok
     *auth_tok , struct ecryptfs_crypt_stat *crypt_stat );

🫶 ARGUMENTS 🫶

okay so the two arguments are giving main character energy:

• auth_tok — the passphrase authentication token to use to encrypt the FEK 💖 (yes bestie, that's the wording: to use to encrypt the FEK — we are not fixing it, we are respecting the lore).
• crypt_stat — the cryptographic context 🧚

💅 DESCRIPTION 💅

so what's the vibe check? It returns zero on success; non-zero error otherwise. That's it. Zero = slay ✅, non-zero = not it ❌. No extra lore, no secret side quests — just the return-value tea, periodt 🍵

🔥 SEE ALSO 🔥

Kernel file ./fs/ecryptfs/keystore.c is the source-side main character, iykyk. And these are the link-up besties, fr fr:

• ecryptfs_parse_packet_length(9)
• ecryptfs_write_packet_length(9)
• ecryptfs_verify_version(9)
• ecryptfs_verify_auth_tok_from_key(9)
• ecryptfs_find_auth_tok_for_sig(9)
• ecryptfs_parse_tag_70_packet(9)
• decrypt_pki_encrypted_session_key(9)
• parse_tag_1_packet(9)
• parse_tag_3_packet(9)
• parse_tag_11_packet(9)
• ecryptfs_parse_packet_set(9)
• write_tag_1_packet(9)
• write_tag_11_packet(9)
• write_tag_3_packet(9)
• ecryptfs_generate_key_packet_set(9)

okay bye bestie 🫶 this iconic little page came from source/version ./fs/ecryptfs, dated October 2026, and it's the decrypt_pass..._session_key(9) manual. mwah 💋✨