Lua

Add a PFX Source from BinData

Demonstrates the Chilkat Email.AddPfxSourceBd method, which adds PFX data held in a BinData object to the list of certificate and private-key sources used during decryption or signing. The second argument is the PFX password. Call it before obtaining the encrypted email so Chilkat can decrypt it automatically. This example loads a PFX into a BinData, adds it, and then loads an encrypted email.

Background: This is the in-memory (BinData) counterpart to AddPfxSourceFile. It is the right choice when the PFX bytes come from somewhere other than a file — a database, a secrets manager, or an HTTP download — letting you supply the certificate and private key without first writing them to disk (which is preferable for sensitive key material).

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Lua

local chilkat = require("chilkat")

-- Demonstrates the AddPfxSourceBd method, which adds PFX data (held in a BinData) to the
-- list of certificate and private-key sources used during decryption or signing.  The
-- second argument is the PFX password.  Call it before obtaining the encrypted email.

local email = chilkat.Email.new()

-- Load PFX data into a BinData object.
local bdPfx = chilkat.BinData.new()
local success = bdPfx:load_file("qa_data/certs/decryption.pfx")
if not success then
    print(bdPfx.last_error_text)
    return
end

-- Add the PFX as a source of the certificate + private key.
success = email:add_pfx_source_bd(bdPfx, "pfx_password")
if not success then
    print(email.last_error_text)
    return
end

-- Load an encrypted email; Chilkat decrypts it using the PFX source.
success = email:load_eml("qa_data/eml/encrypted.eml")
if not success then
    print(email.last_error_text)
    return
end

print("Decrypted = " .. tostring(email.decrypted))

-- Note: Paths such as "qa_data/..." are relative local filesystem paths,
-- relative to the current working directory of the running application.