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You can create and read both enveloped-data (encrypted) and signed-data Cryptographic Message Syntax (CMS, PKCS#7) objects, which you can use in S/MIME email messages; verify the digital signature in a signed-data CMS object; generate and manage RSA public and private keys; carry out "raw" RSA encryption and digital signing, make PKCS#10 certificate request files, and create and manage X.509 certificate files.
Other utilities included in the toolkit are the ability to generate message digest hash values using SHA-1, MD5, MD2, SHA-224/256/384/512; generate HMAC keyed-hash message authentication values, wipe files using 7-pass DOD standards, generate cryptographically-secure random numbers to the strict NIST SP800-90 standard, prompt for a password, and convert to and from base64- and hexadecimal-encoded formats.
CryptoSys PKI uses a straightforward Win32 DLL which is compatible with all versions of 32-bit Windows (95/98/Me/NT/2K/XP/2003/Vista). There is no "COM", no "Active-X", and no requirement to "register" it with Windows to use it. The installed executable has a small footprint under 300 KB. Developers can easily distribute it with their projects made in Visual Basic, VBA, C, C++, VB.NET/VB2005 or C# (in fact, in any other programming language that will let you call Win32 API functions - see Extra Interfaces). For more information on how the RSA key data is stored and how the various functions work together, see RSA Key Formats. For some examples, see the Examples section below. For the theory and more detailed explanations of how RSA is used in practical applications, see RSA algorithm including its use in creating ISO/IEC 9796 signatures in the AUTACK scheme. We have prepared some Test Vectors For RSA-KEM, which can be reproduced using CryptoSys PKI.
Note that the CryptoSys PKI Toolkit is totally independent from our original CryptoSys API product. The two packages do different things and do not require the other in order to work: see a Comparison of CryptoSys Features for a summary.
| Great product - just what I was looking for - bought a copy this morning. |
| Good work everyone! |
| It seems to be a very good and powerful toolkit |
| Thank you very much for the quick and detailed answer. It helped me a lot and now my program works pretty good, I have signed and encrypted my data successfully. |
| I wanted to let you know we [purchased] CryptoSys Software to include in an ERP project we are working on in Mexico. I had tried other digital signature products that required the certificate (with private) key first be stored in the Win certificate store and then I wasn't getting the correct signature. So, I guess there is something special about how you are using the .key file that is provided by SAT Mexico. I am very glad I came across your product. Thank you |
C:\Program Files\CryptoSysPKI,
or you can download a zipped version (128 kB).
Please check the Known Issues page.
Users of the .NET C# and VB.NET/VB2005 interfaces can browse the
on-line .NET help manual.
The trial version download includes the full manual and test functions in Visual Basic, VB.NET, C and C#. Please read the licence conditions for the trial version. The latest version 3.2 was released on 2 February 2008. The trial period is 60 days from the date first installed on your system.
You need to have administrator rights when installing and uninstalling.
You can purchase a licenced version here. Existing licence holders can download the latest Developer Version here.
For assistance in programming in your language, please see the sections in the manual:
C:\Program Files\CryptoSysPKI.
See the PKI Examples Page for more details and more examples.
We get lots of queries asking how to use the RSA_Raw functions to do simple RSA encryption
and signing.
See Raw RSA Techniques for a guide to
methods available in the latest version, including the new EncodeMsg and
DecodeMsg functions introduced in version 2.6.
If you want more detailed information about the different formats in which RSA keys can be stored,
how the keys are used to create X.509 certificates,
and all the different functions in the Toolkit that create, read and save the key data,
you may find the information in RSA Key Formats useful.
See also Importing an RSA key from known parameters.
New utility to create
digital signatures in SAT v2.0 format and more now available. See FirmaSAT.
CryptoSys PKI Toolkit erfüllt alle Voraussetzungen, die notwendig sind, gemäß der Security Schnittstelle für den Datenaustausch im Gesundheitswesen Version 1.5, um mit den Datenannahmestellen der gesetzlichen Krankenkassen und dem ITSG-Trustcenter zu kommunizieren. Anders als bei DAKOTA stehen hier alle notwendigen Prozeduren in einer einzigen DLL zur Verfügung. Für das Erstellen der Zertifizierungsanfrage, dem Einlesen der Zertifizierungsantwort, dem Signieren / Verschlüsseln der Nachricht und der Speicherung der Daten (Zertifikate, privater Schlüssel, Annahme-pkcs.key) sind Beispiele in VB vorhanden. Sowohl der Zertifikatsantrag (PKCS#10 Format) beim ITSG-Trustcenter als auch die Datenübermittlung (PKCS#7 Format) an AOK, IKK, BKK, LKK, Knappschaft wurden erfolgreich durchgeführt. CryptoSys PKI Toolkit wird im Leistungserbringerverfahren und im Arbeitgeberverfahren erfolgreich eingesetzt.
We have introduced a whole new set of combinations of new encryption algorithms in this version.
rsaEncryption algorithm in
S/MIME enveloped-data objects.Increased combinations of options for algorithms:
| Function | Combinations Before | Combinations Now |
|---|---|---|
CMS_MakeEnvData | 1 | 24 |
CMS_MakeSigData | 2 | 6 |
X509_MakeCert | 3 | 7 |
RSA_SaveEncrPrivateKeyRSA_MakeKeys |
5 | 24 |
That's an extra 50 alternatives for users; and another 50 set of acceptance tests for us to do, for which there aren't any decent test vectors yet. Use at your own risk.
We must add that most of these new additions are overkill for the average user.
It's convenient for us to add all the combinations at once, but expect the standard CMS algorithms of
rsaEncryption with SHA-1 and Triple DES for encryption, and sha1WithRSAEncryption for signatures
to stay as a standard for several years to come.
Most other applications will not accept the new AES/SHA-2 algorithms yet,
so check with your recipients whether they support them.
We note that signatures using SHA-256 are starting to be required and we expect
AES-128 will become a commonplace requirement instead of Triple DES soon.
Otherwise, most other options (AES-192/256 and SHA-384/512) should be kept in reserve.
Please consult your security adviser for the latest recommendations.
Remember that it's the overall security of your entire process that matters, not that you've decided to use AES-256 and SHA-512 just because they are the strongest items on the menu. A security level of 128 bits can be satisfied with AES-128 and SHA-256 and an RSA key of 3072 bits. Any keys and random numbers used should be to the same security level (which is harder to do than you might think). And a password of the same strength needs to be approximately 98 characters long! See NIST Special Publication 800-57 Part 1 section 5.6 for more details on consistent security levels.
When we are dragged up to the cryptography equivalent of the International Court of Justice in The Hague on charges of wilfully giving inexperienced users the ability to use cryptographic algorithms they couldn't hope to use properly, we shall plead the usual excuse that we did warn them and point to the weasel words we included in the small print of the user license :-)
CMS | RSA Keys | Raw RSA | X.509 Certificates | PFX | Block Cipher | Hash Digests | HMAC | RNG | Encoding | Miscellaneous | New
* New in Version 3.2
CMS_MakeEnvData - Create an encrypted CMS enveloped-data object for one or more recipients using their X.509 certificates.CMS_MakeEnvDataFromString - ditto using data directly from a string instead of a file.CMS_ReadEnvData - Reads and decrypts a CMS enveloped-data object using recipient's private key.CMS_ReadEnvDataToString - ditto writing data directly into a string instead of a file.CMS_MakeSigData - Create a CMS signed-data object using sender's private key.CMS_MakeSigDataFromString - ditto using data directly from a string instead of a file.CMS_MakeSigDataFromSigValue - ditto using a pre-computed signature value.CMS_MakeDetachedSig - Create a "detached signature" CMS signed-data object from message digest of content.CMS_ReadSigData - Reads content from a CMS signed-data object file.CMS_ReadSigDataToString - ditto writing content data into a string instead of a file.CMS_GetSigDataDigest - Extracts message digest from a CMS signed-data object file and verifies the signature.CMS_VerifySigData - Verifies signature and content of a CMS signed-data object file.CMS_QuerySigData - Queries a CMS signed-data object file for selected information.CMS_QueryEnvData* - Queries a CMS enveloped-data object file for selected information.RSA_MakeKeys - Generate a RSA key pair and save as a public key file and PKCS-8 EncryptedPrivateKeyInfo file.RSA_ReadEncPrivateKey - Reads private key string from a PKCS-8 EncryptedPrivateKeyInfo file.RSA_ReadPrivateKeyInfo - Reads private key string from an (unencrypted) PrivateKeyInfo file.RSA_SaveEncPrivateKey - Saves a private key string to a PKCS-8 EncryptedPrivateKeyInfo file.RSA_SavePrivateKeyInfo - Saves a private key string to an (unencrypted) PKCS-8 PrivateKeyInfo file.RSA_GetPrivateKeyFromPFX - Extracts a private key from a PKCS-12 PKCSShroudedKeybag.RSA_ReadPublicKey - Reads public key string from a PKCS-1 RSAPublicKey file.RSA_SavePublicKey - Saves a public key in a PKCS-1 RSAPublicKey file.RSA_GetPublicKeyFromCert - Extracts a public key from a X.509 certificate.RSA_KeyBits - Returns length of key in bits given public or private key string.RSA_KeyBytes - Returns length of key in bytes given public or private key string.RSA_ToXMLString - Creates an XML string representation of an RSA internal key string.RSA_FromXMLString - Creates an RSA key string in internal format from an XML string.RSA_CheckKey - Checks if an RSA key string is valid.RSA_KeyHashCode - Returns a hash code of a public or private key string.RSA_KeyMatch - Verifies that a pair of private and public key strings are matched.RSA_RawPublic - Transforms raw data using an RSA public key.RSA_RawPrivate - Transforms raw data using an RSA private key.RSA_EncodeMsg - Creates an EME or EMSA encoded message block according to PKCS#1.RSA_DecodeMsg - Decodes an EME or EMSA encoded message block according to PKCS#1.RSA_KemWrap* - Wraps (encrypts) secret key material using RSA-KEM with the recipient's RSA public key.RSA_KemUnwrap* - Unwraps (decrypts) secret key material using RSA-KEM with the recipient's RSA private key.X509_MakeCert - Create an X.509 certificate.X509_MakeCertSelf - Create a self-signed X.509 certificate.X509_CertRequest - Creates a PKCS-10 certification signing request (CSR).X509_VerifyCert - Verifies that an X.509 certificate has been signed by its issuer.X509_CertIsValidNow - Verifies that an X.509 certificate is currently valid.X509_CertThumb - Calculates the SHA-1 thumbprint of an X.509 certificate.X509_CertIssuedOn - Gets the date and time an X.509 certificate was issued.X509_CertExpiresOn - Gets the date and time an X.509 certificate expires.X509_CertSerialNumber - Gets the serial number of an X.509 certificate in hexadecimal format.X509_CertIssuerName - Gets the issuer name of an X.509 certificate.X509_CertSubjectName - Gets the subject name of an X.509 certificate.X509_HashIssuerAndSN - Computes the message digest hash of the PKCS #7 issuerAndSerialNumber value.X509_GetCertFromP7Chain - Extracts an X.509 certificate from a PKCS-7 "certs-only" certificate chain file.X509_GetCertFromPFX - Extracts an X.509 certificate from a PKCS-12 PFX/.p12 file.X509_KeyUsageFlags - Returns a bitfield containing the keyUsage flags.X509_QueryCert - Queries a X.509 certificate file for selected information.X509_ReadStringFromFile - Creates a base64 string of the X.509 certificate file.X509_SaveFileFromString - Creates a new X.509 certificate file from a base64 string.PFX_MakeFile - Creates a simple PFX (PKCS-12) file from X.509 certificate and (optional) encrypted private key file.PFX_VerifySig - Verifies a PFX (PKCS-12) file signature.CIPHER_Bytes* - Encrypts/decrypts an array of bytes using specified block cipher algorithm and mode.
CIPHER_File* - Encrypts/decrypts a file using specified block cipher algorithm and mode.
CIPHER_Hex* - Encrypts/decrypts a hex-encoded string using specified block cipher algorithm and mode.
CIPHER_KeyWrap* - Wraps a content-encryption key with a key-encryption key.
CIPHER_KeyUnwrap* - Unwraps a content-encryption key with a key-encryption key.
TDEA_BytesMode - Encrypts or decrypts byte data using Triple DES.TDEA_HexMode - Encrypts or decrypts hexadecimal-encoded data using Triple DES.TDEA_B64Mode - Encrypts or decrypts base64-encoded data using Triple DES.TDEA_File - Encrypts or decrypts a file using Triple DES.HASH_Bytes - Creates a cryptographic hash digest in byte format from byte data.HASH_File - Creates a cryptographic hash digest in byte format from a file.HASH_HexFromBytes - Creates a cryptographic hash digest in hex format from byte data.HASH_HexFromFile - Creates a cryptographic hash digest in hex format from a file.HASH_HexFromHex* - Creates a cryptographic hash digest in hex format from hex-encoded data.HMAC_Bytes - Creates a keyed-hash HMAC in byte format from byte data.HMAC_HexFromBytes - Creates a keyed-hash HMAC in hex format from byte data.HMAC_HexFromHex* - Creates a keyed-hash HMAC in hex format from hex-encoded data.RNG_Bytes - Generates a random set of byte data.RNG_BytesWithPrompt - ditto with a prompt to enter random keystrokes.RNG_Number - Generates a random number in a given range.RNG_Initialize - Initializes the RNG from a seed file.RNG_MakeSeedFile - Creates a new seed file, prompting for entropy.RNG_UpdateSeedFile - Updates an existing seed file.RNG_Test - Carries out a health check and a FIPS-140-2 statistical test on the RNG.CNV_B64StrFromBytes - Encodes byte data into a base64-encoded string.CNV_BytesFromB64Str - Decodes a base64-encoded string into bytes.CNV_B64Filter - Removes non-base64 characters from a string.CNV_HexStrFromBytes - Encodes byte data into hexadecimal string.CNV_BytesFromHexStr - Decodes a hexadecimal-encoded string into bytes.CNV_HexFilter - Removes non-hexadecimal characters from a string.CNV_Latin1FromUTF8 - Converts a UTF-8 string into Latin-1, if possible.CNV_UTF8FromLatin1 - Converts a Latin-1 string into UTF-8.CNV_CheckUTF8 - Checks if a string is valid UTF-8.WIPE_File - Securely wipes a file using 7-pass DOD standards.WIPE_Data - Zeroises data in memory.PWD_Prompt - Prompts for a password.PWD_PromptEx - ditto with option to change the prompt.PKI_LastError - Get the last error message set by the toolkit.PKI_ErrorCode - Returns the error code of the first error that occurred when calling the last function.PKI_ErrorLookup - Gets the error message associated with a given error code.PKI_Version - Get the release version.PKI_CompileTime - Get date and time the DLL was last compiled.PKI_ModuleName - Get the full pathname of the current process's module.PKI_LicenceType - Returns the ASCII value of the licence type.PKI_PowerUpTests - Carries out on demand the full set of power-up tests.* New in Version 3.2
CIPHER_Bytes,
CIPHER_Hex, and
CIPHER_File.
HASH_HexFromHex
and HMAC_HexFromHex functions.
shaXXXWithRSAEncryption"
with SHA-224/256/384/512
for
X509_MakeCert[Self]
and
X509_CertRequest.
CMS_MakeSigData[FromString].
CMS_MakeEnvData[FromString].
CMS_MakeEnvData.
RSA_KemWrap and
RSA_KemUnwrap which will wrap (encrypt) and unwrap (decrypt)
secret keying data for a recipient with the recipient's RSA key using the
RSA-KEM ("Simple RSA") algorithm;
and added the block cipher key wrap functions
CIPHER_KeyWrap
and CIPHER_KeyUnwrap
using AES-wrap and Triple DES wrap.
(Note that the RSA function name is RSA_KemWrap, as in Key Encapsulation Mechanism,
not KeyWrap.)
RSA_SaveEncPrivateKey and
RSA_ReadEncPrivateKey
functions. Please also read our comments on the new security algorithms.
CMS_QueryEnvData function,
and included the ability to pass a base64- or PEM-encoded certificate list to
CMS_MakeEnvData and
CMS_MakeSigData.
X509_MakeCert
or X509_MakeCertSelf.
See Specifying Distinguished Names for more details.
RSA_KeyMatch
function to verify that a pair of RSA private and public key strings are matched.
TDEA_File.
To prevent accidental misuse, if an error occurs when using this function, the output file will now not exist.
CMS_MakeEnvData function to conform with the
PKI requirements of the German Health System.
RSA_KeyHashCode
function to allow comparison of internal key strings.
HASH functions.HMAC functions to compute a keyed hash value,
HMAC_HexFromBytes and
HMAC_Bytes.
X509_KeyUsageFlags and
X509_QueryCert.
X509_ReadStringFromFile and
X509_SaveFileFromString.
For more information, please contact us.
This page last updated: 30 July 2008
