eastus2.api.cognitive.microsoft.com Certificate - 5783BED398AFE88EA733261C0232B23C3686464B

A

Certificate Summary:

Subject: eastus2.api.cognitive.microsoft.com
Issuer: MSFT RS256 CA-1
Expiration: 2026-12-12 23:59:59 UTC
Key Identifier: 57:83:BE:D3:98:AF:E8:8E:A7:33:26:1C:02:32:B2:3C:36:86:46:4B

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Received at FYIcenter.com on: 2026-10-01

Certificate Detailed Information:

Name:
/C=US/ST=Washington/L=Redmond/O=Microsoft Corporation/CN=eastus2.api.cog
nitive.microsoft.com

Subject: 
   Common Name (CN): eastus2.api.cognitive.microsoft.com
   Organizational Unit Name (OU): 
   Organization Name (O): Microsoft Corporation
   Locality Name (L): Redmond
   State or Province Name (ST): Washington
   Country Name (C): US
   Email Address: 
Issuer: 
   Common Name (CN): MSFT RS256 CA-1
   Organizational Unit Name (OU): 
   Organization Name (O): Microsoft Corporation
   Locality Name (L): 
   State or Province Name (ST): 
   Country Name (C): US
   Email Address: 
Valid From: Thu, 03 Sep 2026 00:00:00 +0000 
Valid To: Sat, 12 Dec 2026 23:59:59 +0000 
Serial Number: 5661475411274751864083791136961986255 
Hash: b9ec3c43 
Version: 2 
Signature Type: sha256WithRSAEncryption 
Purposes:  
   SSL client 
   SSL server 
   Netscape SSL server 
   S/MIME signing 
   S/MIME encryption 
   CRL signing 
   Any Purpose 
   OCSP helper 
   Time Stamp signing 
   Code signing 
Extensions:  
   authorityKeyIdentifier:
      0C:81:7E:94:39:5F:C7:77:A2:7F:17:16:79:38:E8:35:96:8E:7F:94 
   subjectKeyIdentifier:
      57:83:BE:D3:98:AF:E8:8E:A7:33:26:1C:02:32:B2:3C:36:86:46:4B 
   subjectAltName:
      DNS:eastus2.api.cognitive.microsoft.com, DNS:eastus2.dev.cognitive.microsoft.com, DNS:*.cognitiveservices.azure.com, DNS:*.openai.azure.com, DNS:*.services.ai.azure.com 
   certificatePolicies:
      Policy: 2.23.140.1.2.2
  CPS: http://www.digicert.com/CPS 
   keyUsage:
      Digital Signature, Key Encipherment 
   extendedKeyUsage:
      TLS Web Server Authentication 
   crlDistributionPoints:
      Full Name:
  URI:http://crl3.digicert.com/MSFTRS256CA-1.crl

Full Name:
  URI:http://crl4.digicert.com/MSFTRS256CA-1.crl
 
   authorityInfoAccess:
      OCSP - URI:http://ocsp.digicert.com
CA Issuers - URI:http://cacerts.digicert.com/MSFTRS256CA-1.crt 
   basicConstraints:
      CA:FALSE 
   ct_precert_scts:
      Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : C2:31:7E:57:45:19:A3:45:EE:7F:38:DE:B2:90:41:EB:
                C7:C2:21:5A:22:BF:7F:D5:B5:AD:76:9A:D9:0E:52:CD
    Timestamp : Sep  3 13:13:44.127 2026 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:44:02:20:27:F9:BC:BA:4F:18:1B:9B:73:36:FD:A4:
                F2:D0:6A:8B:B1:92:56:C7:6B:50:E2:16:5B:72:D1:C9:
                25:97:64:0A:02:20:46:14:D9:03:2C:5B:BF:D3:A6:DD:
                CE:27:6B:28:10:0B:0C:36:DD:FB:66:C5:31:E7:C4:69:
                7B:C9:C7:AD:38:AC
Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : D8:09:55:3B:94:4F:7A:FF:C8:16:19:6F:94:4F:85:AB:
                B0:F8:FC:5E:87:55:26:0F:15:D1:2E:72:BB:45:4B:14
    Timestamp : Sep  3 13:13:44.134 2026 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:44:02:20:70:40:C7:A3:5E:95:05:AD:D6:18:DF:58:
                14:33:BA:E3:79:EB:19:D9:60:A1:9B:19:FF:58:3A:A4:
                8D:35:E0:65:02:20:2E:80:36:73:6D:50:76:B7:40:4F:
                F4:2E:C4:BE:AD:1C:C1:60:1D:9C:87:AB:21:24:A4:FE:
                67:1B:9C:F5:0F:07
Signed Certificate Timestamp:
    Version   : v1 (0x0)
    Log ID    : 94:4E:43:87:FA:EC:C1:EF:81:F3:19:24:26:A8:18:65:
                01:C7:D3:5F:38:02:01:3F:72:67:7D:55:37:2E:19:D8
    Timestamp : Sep  3 13:13:44.136 2026 GMT
    Extensions: none
    Signature : ecdsa-with-SHA256
                30:46:02:21:00:BF:C7:55:9A:95:E3:11:2E:E5:B9:69:
                EE:8D:7B:D2:FE:AF:DE:F1:4C:4D:9B:18:C1:08:B6:CC:
                46:A4:3F:4C:A8:02:21:00:DD:79:58:18:DC:07:2F:0F:
                71:59:14:F9:CE:F2:B3:7C:12:5F:F1:DA:7E:CA:C9:DD:
                EC:08:F9:34:D1:3D:D4:8F

Certificate in PEM Format:

Related Certificate(s):

ID      Subject          Issuer           Expiration Key Identifier   Relation   
        eastus2.api.cog… MSFT RS256 CA-1  2026-12-12 5783BED398AFE88… This Cert
        --------------------------------------------------
32547   MSFT RS256 CA-1  DigiCert Global… 2032-04-27 0C817E94395FC77… Parent Cert

Public Key Detailed Information:

Key Details:
   Type: RSA
   Size (bits): 2048
   Modulus (n): 
c2fb68e11881fb6866ede4886a2c4cdd3b9befd54419b4d54eb8838882a2440c
b8043ba7d753ebeef87e5ab3ba41e0904b0e8812aca18a30266fc0b40fa64234
5658fb0e8e0aea2285dd6f972e637210ee6d9efa7eb1f7ad7ea61ca022376497
44330a7f3b860fd077410a3b00077d6ab6f6fe5928abd1d6439efec01430c1cc
3201b0110ce104bc4aa4dcf133e17efd3617c23a7ea6e690972250243171905a
1b166ea0097d3c8248d9b345f85793461be12653c20029cc12af2b8c20e99adb
5c8103578f474b904e1dab1d369962aec9b034a46eac5c4bc7061c269b0d73de
59b63a687ddfe1d54f122b06d80ebb0e428052e14b092d44f8c7257180a41e31
   Public Exponent (e): 65537 (0x010001)

Public Key in PEM Format:

Identical or Similar Keys: We found that the public key in this certificate matches key(s) recorded previously.

ID      Type Size Pri/Pub Key Identifier   Date       Comparison 
32546   RSA  2048 Public  5783BED398AFE88… 2026-10-01 Same Key ID

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