The core of the CryptoSys API software
is the diCryptoSys.dll
file. Make sure you have a genuine version
by verifying the details and checksums for the file you have. More details...
0x790d0475e5def6d9dce3f47495ed0421
issued by 'Sectigo Public Code Signing CA R36'.
0x7d26ca9a1f69a6c0ed193a079411ab42
issued by 'Sectigo RSA Code Signing CA'.
0x09357595c703e26fbf6c6d1203400a4c
issued by 'DigiCert SHA2 Assured ID Code Signing CA'.
0x019bc3e34a3aec2584f61e5ef2eedfa1
issued by `DigiCert SHA2 Assured ID Code Signing CA`.
0x00cd0a1aff36ca9f4249eca3364e7c97ca
issued by `COMODO CA Limited`.
0x00fbc723228c8c8022d8859223dee70660
issued by `The USERTRUST Network`.
File: diCryptoSys.dll LATEST VERSION (6.21.1) Developer Version (Win32) File version: 6.22.2.1 Platform: Win32 last modified*: 2024/01/07 08:19:55 GMT size: 821792 bytes sha1: 1a1d1325b9a9237831614074ccfab99a19eb3e6d sha256: 11919e210571c2dd5710fd9df0f2c88fe6d732706dc2575bc963c3002708efcd crc32: b57c024d Trial Version (Win32) File version: 6.22.1.1 Platform: Win32 last modified*: 2024/01/07 08:13:50 GMT size: 854048 bytes sha1: 20318fc07120bbdfd20836c9929300c6d6176b1e sha256: f17b525b5890fa8929e817700635089c5665de733e32f8cb40f56de2c1de1dbd crc32: e46ee02d Developer Version (x64) File version: 6.22.6.1 Platform: x64 last modified*: 2024/01/07 08:20:18 GMT size: 956960 bytes sha1: 81802f73d2ac79dac09111c3568db3297000e7f5 sha256: 1b4be43b6c4f9e159ad59acbf3aa1d61cd2003fa40665f9446b846d5a4676321 crc32: 88a2e164 Trial Version (x64) File version: 6.22.5.1 Platform: x64 last modified*: 2024/01/07 08:14:13 GMT size: 970784 bytes sha1: e612a9ee027bd60187687190f3f67bed20188092 sha256: fc3a1dac2e5383d93876dafb608798c785d46416db0016acddf8e675e7fdf4ab crc32: f84e3289 OLDER VERSIONS Developer Version (Win32) File version: 6.21.2.0 Platform: Win32 last modified*: 2023/05/26 11:21:11 GMT size: 816672 bytes sha1: 2013b6f634b81232b298d15f8a5528de815ac289 sha256: cd98a60474059868255c4afcea7c371e7b41b74e5863e5f73de096b51e41cd12 crc32: bcca9cf4 Trial Version (Win32) File version: 6.21.1.0 Platform: Win32 last modified*: 2023/05/26 11:17:51 GMT size: 848928 bytes sha1: 1b4f4992f2fb753bbc27d5c7e3e5817a77d988d7 sha256: 55dc22770ceeb98eac302e06c3ea83695853d82d2e35eee90a7140f74f7d9e32 crc32: 062fc36a Developer Version (x64) File version: 6.21.6.0 Platform: x64 last modified*: 2023/05/26 11:21:33 GMT size: 953376 bytes sha1: 626b31238a797d2cf5f259a145c75fd88fb61fcf sha256: e198354ea736309c66ffe90edca877ca0bebb85a36ec1f9ee1dc73cd07a1e33a crc32: d7b278d4 Trial Version (x64) File version: 6.21.5.0 Platform: x64 last modified*: 2023/05/26 11:18:14 GMT size: 965664 bytes sha1: 0eea464b877c69d0f1c4b07e54c032e6a3e29f78 sha256: e88979be8d1944372be8f2fbf39f7b92520768338c5219f2e879c6949a9b1bbb crc32: 69f64d8b Developer Version (Win32) File version: 6.20.2.0 Platform: Win32 last modified*: 2021/09/25 08:29:45 GMT size: 799392 bytes md5: 2b4ffecf51216d5578ae72a9d758ebfe sha1: ae251822b573132a9aac5212dd75fc6a8687a802 crc32: 59290330 Trial Version (Win32) File version: 6.20.1.0 Platform: Win32 last modified*: 2021/09/25 08:26:38 GMT size: 831136 bytes md5: 869e05d75735d9ad3707bd3ca1424751 sha1: 5744179eb763a065447daada80700a46484ecf5d crc32: 425115bc Developer Version (x64) File version: 6.20.6.0 Platform: x64 last modified*: 2021/09/25 08:30:10 GMT size: 920224 bytes md5: dc552c625830cb0fe069d03eda335a40 sha1: 771e085a358d989d9dad1fef9532e25304759189 crc32: f466ee07 Trial Version (x64) File version: 6.20.5.0 Platform: x64 last modified*: 2021/09/25 08:23:02 GMT size: 933536 bytes md5: 052639cc41412df49aa6075920e0f0bc sha1: 25b4bf8fc6dab56b47d6b682a0ad83b154e6205d crc32: f62bc288 Developer Version (Win32) File version: 6.0.2.0 Platform: Win32 last modified*: 2021/03/02 10:42:51 GMT size: 452360 bytes md5: 1cc6c2377ecd87a1b8859501bfb77234 sha1: 56e35ae000ea6a7153d7ed82db26c1f6f0e69b6f crc32: f48723a0 Trial Version (Win32) File version: 6.0.1.0 Platform: Win32 last modified*: 2021/03/02 10:41:56 GMT size: 483592 bytes md5: 6052ba73563e9982a7059e3283ca41cb sha1: cac17ed2ea0e13cbf17eb763cfb0d110e0caf059 crc32: 8b9debe4 Developer Version (x64) File version: 6.0.6.0 Platform: x64 last modified*: 2021/03/02 10:43:18 GMT size: 543496 bytes md5: 3e3781df5bcfc9a541cfe04255a2e9c8 sha1: fca1f63334639621847d61dc504f0101b17563bf crc32: b01408ef Trial Version (x64) File version: 6.0.5.0 Platform: x64 last modified*: 2021/03/02 10:40:53 GMT size: 555784 bytes md5: 789074ee4b1f424c27922d2427be4fcc sha1: c23bf3480057a93dc6b5750842fe6cb4bcef1073 crc32: 528d3d36 Developer Version (Win32) File version: 5.4.2.0 Platform: Win32 last modified*: 2020/03/22 13:03:56 GMT 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2034e63e Personal Version (x64) File version: 4.1.4.0 Platform: x64 last modified*: 2008/07/11 14:33:34 GMT size: 494080 bytes md5: 7b9f1af632b595337dd5c39c7c1d6580 sha1: ef30c7acef2fdbb8156c8f2efe8a55eefdde5601 crc32: 39d18a86 PREVIOUS DEVELOPER VERSIONS Version 4.0.8.0 last modified*: 2007/09/12 17:10:30 GMT size: 296,448 bytes md5: e6d8c2f9e3efdd3c43850e70b728173b sha1: c99631a45bd015f5902a5d1eae292f4b7219ed22 crc32: e9f83735 Version 3.2.9.0 last modified*: 2006/07/21 14:06:47 GMT size: 268,288 bytes md5: 4806ad7fbf3196b2af6f47ec4ffcf6fb sha1: 60594815970cc933c4ec255e35fdc7fa0fd489ef crc32: 010951d2 Version 3.1.9.0 last modified*: 16 Jan 2006 13:47:28 GMT size: 257,536 bytes md5: ca54341a5930c8c61f60ee2f65a51bb3 sha1: be0683c646f668787a74f4caca160218cf21c1fa crc32: D512CBFA Version 3.0.1.0 last modified*: 28 Feb 2005 16:50:12 GMT size: 240,640 bytes md5: 8aa7344582cff610adb33df4d65cb279 sha1: 61d333daf92b463443c65edc29705004d3c05f71 crc32: B138EBC9 Version 2.1.1.0 last modified*: 10 Aug 2003 03:36:06 GMT size: 188,928 bytes md5: 3a6ee0bc572b4e1e6659c2c4d18092db sha1: e5a9bb41171349fcaa82bebef62d95937d311ff9 crc32: E9B9C57F Version 2.0.1.0 last modified*: 22 Feb 2003 08:45:30 GMT size: 187,904 bytes md5: e94d5e208d7d2bfbedd5d0b4a330884e sha1: 1623557542cce5e5c27efb77ea370930fbf081fa crc32: 0705FB75 Version 1.0.1.4 last modified*: 2 Dec 2002 00:10:20 GMT size: 148,992 bytes md5: 29a5b0b768fc103b934d4e1ae0ecd04a sha1: b518fa04c9144ba307052090dfc9397f47a183a5 crc32: 2FD17E4F Version 1.0.0.3 last modified*: 29 Apr 2002 03:22:12 GMT size: 148,992 bytes md5: 0298760d2ee993fbcc1aec28fa2cb6d1 sha1: 8da7d2e34230c3e930e7ea8951a130a5c1d0d9bd crc32: 0F0C5F3E Version 1.0.0.2 last modified*: 12 Sep 2001 21:37:42 GMT size: 148,992 bytes md5: 01de9165239c5a046da34460f453713b sha1: 977e91d23e63fc231f796bee9348a58b6b6d2fa5 crc32: E6F39DB9 PREVIOUS SERVER TRIAL VERSIONS Version 4.0.2.0 last modified*: 2007/09/12 17:08:23 GMT size: 306,688 bytes md5: a0672b317b7d3cec072668e4f98094b3 sha1: 1d21247176d057f3300c79c3bfe3cb816de1b550 crc32: beaa2159 Version 3.2.2.0 last modified*: 2006/07/21 14:03:43 GMT size: 277,504 bytes md5: b730ab7b2b7c3820b43175af039e2078 sha1: 49570e9b2482d812509ad1364f163a33dfef6e10 crc32: 2ee013cb Version 3.1.2.0 last modified*: 16 Jan 2006 13:45:58 GMT size: 258,560 bytes md5: 07646afa024acb09beaa88bd7d29152b sha1: 0bda47730d30937e5a3f4c75bc240d14d880c659 crc32: F3BDA4DA PREVIOUS PERSONAL VERSIONS Version 4.0.0.0 last modified*: 2007/09/12 17:06:58 GMT size: 306,688 bytes md5: e8d0f97f222614469180983844221680 sha1: e75c6d3c663b01f985a1ebe98dc0509b04354917 crc32: 61bdd551 Version 3.2.0.0 last modified*: 2006/07/21 14:06:08 GMT size: 278,016 bytes md5: 651637ae1c6f20b4f397e300b904545f sha1: d64f10df6c11b15fa0f2a6eb5a39916d6e226a83 crc32: a917346d Version 3.1.0.0 last modified*: 16 Jan 2006 13:46:49 GMT size: 258,560 bytes md5: 57403ff1d02854b08af18262b0efe6e9 sha1: 67f7c3b43ae7d2d87ee8c99081be72cbb5922e5e crc32: 1AC2CB3A Version 3.0.0.0 last modified*: 28 Feb 2005 16:48:56 GMT size: 243,712 bytes md5: 01324b621480e4bb932afc2f9c3cdedc sha1: ab6091b924604de86057389bc030e539a014279f crc32: B6FDAD2F Version 2.1.0.0 last modified*: 9 Aug 2003 21:29:19 GMT size: 190,976 bytes md5: 69ef2d203946192058617110b927f322 sha1: f2a674fc797c611678473411a44dab6ddb1ea330 crc32: 4209B69D Version 2.0.0.0 last modified*: 21 Feb 2003 20:42:24 GMT size: 189,440 bytes md5: 93858b2c4bc1b62e18da407d7a6baff7 sha1: 2cbb7be0fbc4eeebc079dd85bf07ceaf49f411d4 crc32: 319CBA6D Version 1.0.0.4 last modified*: 2 Dec 2002 00:12:32 GMT size: 149,504 bytes md5: ccdaabdb90209655df4be5f315531c53 sha1: 97c7638c4e2f2b812493727a8b2488a3beef9615 crc32: EB787C89 Version 1.0.0.2 last modified*: 12 Sep 2001 21:38:44 GMT size: 149,504 bytes md5: 860640d948258ffad25f91324c10fbd7 sha1: 7b5790b0fa44e3e738340a3b0239d9c609e3ea44 crc32: 7E6377B6
* Note that the time last modified is GMT (UTC, Zulu time) and will display differently on your machine depending on your time zone settings. However, the time should show as within +/- 12 hours of the GMT time, and the minutes and seconds should match. If you are in an odd half-hour timezone like India, you will need to adjust by the appropriate number of minutes.
View a digitally signed copy of this data, signed using our PGP key.
Version number convention: We use the third digit of the file version for our own installation purposes. So, for example, file version 4.6.x.0 would be API Version 4.6.0.
Right-click on the DLL file in Windows Explorer and select Properties then the General, Details or Digital Signatures tab.
Use the SHA1_FileHexHash
function
or Sha1.FileHexHash Method
method
in CryptoSys API
or use the sha1sum.exe
command-line program (see below)
with the command
SHA1SUM -b diCryptoSys.dll
Use the MD5_FileHexHash
function
or Md5.FileHexHash Method
method
in CryptoSys API
or use the md5sum.exe
command-line program (see below)
with the command
MD5SUM -b diCryptoSys.dll
Use the CRC_File
function
in CryptoSys API
or Crc.File Method
method
or use the crc32sum.exe
command-line program (see below)
with the command
CRC32SUM -b diCryptoSys.dll
Alternatively, zip the file with WinZip(R), open the WinZip file, right-click on the DLL file inside WinZip, select File Properties and the CRC-32 checksum is the CRC value.
The Windows programs md5sum.exe
, sha1sum.exe
, sha256sum.exe
and crc32sum.exe
are freeware command-line programs that generate or verify SHA-1, SHA-256, MD5 and CRC-32 checksums for a file or list of files.
Download from our cryptography code web page.
This page last updated 15 August 2025