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April 10, 2017 13:50
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This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters. Learn more about bidirectional Unicode charactersOriginal file line number Diff line number Diff line change @@ -0,0 +1,132 @@ (ql:quickload '(:cl+ssl :fast-io)) (in-package #:cl-user) (defpackage #:pkcs12-experiment (:use #:cl) (:import-from #:cffi) (:import-from #:cl+ssl)) (in-package #:pkcs12-experiment) (cffi:defcfun ("EVP_PKEY_new" evp-pkey-new) :pointer) (cffi:defcfun ("EVP_PKEY_free" evp-pkey-free) :void (evp-pkey :pointer)) (cffi:defcfun ("X509_new" x509-new) :pointer) (cffi:defcfun ("X509_free" x509-free) :void (x509 :pointer)) (cffi:defcstruct stack-of-x509 (stack :pointer)) (cffi:defcfun ("BIO_s_mem" bio-s-mem) :pointer) (cffi:defcfun ("BIO_new_mem_buf" bio-new-mem-buf) :pointer (buf :pointer) (len :int)) (cffi:defcfun ("BIO_ctrl" bio-ctrl) :long (bio :pointer) (cmd :int) (larg :long) (parg :pointer)) (cffi:defcfun ("BIO_read" bio-read) :int (bio :pointer) (buf :pointer) (len :int)) (cffi:defcfun ("BIO_free" bio-free) :int (bio :pointer)) (cffi:defcfun ("X509_print_ex" x509-print-ex) :int (bio :pointer) (x :pointer) (nmflags :unsigned-long) (cflags :unsigned-long)) (cffi:defcfun ("d2i_PKCS12_bio" d2i-pkcs12-bio) :pointer (bio :pointer) (a :pointer)) (cffi:defcfun ("PKCS12_parse" pkcs12-parse) :int (p12 :pointer) (pass :string) (pkey :pointer) (cert :pointer) (ca :pointer)) (cffi:defcfun ("PKCS12_free" pkcs12-free) :void (p12 :pointer)) (cffi:defcfun ("PKCS12_verify_mac" pkcs12-verify-mac) :int (p12 :pointer) (pass :string) (passlen :int)) (cffi:defcfun ("ERR_print_errors" err-print-errors) :void (bio :pointer)) (cffi:defcfun ("OpenSSL_add_all_digests" openssl-add-all-digests) :void) (cffi:defcfun ("PKCS12_PBE_add" pkcs12-pbe-add) :void) (defun bio-to-data (bio) (let ((buffer (make-array (* 5 1024) :element-type '(integer -1 32)))) (cffi:with-pointer-to-vector-data (buffer-sap buffer) (let ((len (bio-read bio buffer-sap (* 5 1024)))) (if (= len -1) (subseq buffer 0 0) (subseq buffer 0 len)))))) (defun bio-to-string (bio) (map 'string #'code-char (bio-to-data bio))) (defun slurp-file (file) (fast-io:with-fast-output (result) (let ((buffer (make-array 1024 :element-type '(unsigned-byte 8)))) (with-open-file (in file :element-type '(unsigned-byte 8)) (loop for read = (read-sequence buffer in) do (fast-io:fast-write-sequence buffer result 0 read) while (= read 1024)))))) (defun get-errors () (let ((bio (cl+ssl::bio-new (bio-s-mem)))) (unwind-protect (progn (err-print-errors bio) (bio-to-string bio)) (bio-free bio)))) (defun load-pkcs12 (file &optional passphrase) (openssl-add-all-digests) (pkcs12-pbe-add) (let ((content (slurp-file file))) (cffi:with-pointer-to-vector-data (data-sap content) (let* ((bio (bio-new-mem-buf data-sap (length content))) (p12 (d2i-pkcs12-bio bio (cffi:null-pointer))) (pkey (evp-pkey-new)) (cert (x509-new))) (unwind-protect (progn (let ((res (pkcs12-verify-mac p12 (or passphrase (cffi:null-pointer)) (length passphrase)))) (when (zerop res) (error (format nil "Error while verifying mac~%~A" (get-errors))))) (cffi:with-foreign-objects ((*pkey :pointer) (*cert :pointer)) (setf (cffi:mem-ref *pkey :pointer) pkey (cffi:mem-ref *cert :pointer) cert) (let ((res (pkcs12-parse p12 (or passphrase (cffi:null-pointer)) *pkey *cert (cffi:null-pointer)))) (when (zerop res) (error "Error in pkcs12-parse~%~A" (get-errors))))) (pkcs12-free p12) (let ((bio (cl+ssl::bio-new (bio-s-mem)))) (unwind-protect (progn (x509-print-ex bio cert 0 0) (bio-to-string bio)) (bio-free bio)))) (evp-pkey-free pkey) (x509-free cert))))))