- Release Notes
- Announcements
- Price Change to DigiCert SSL Certificates
- TrustAsia Root Certificate Update
- Domain Validation Policy Update
- SSL Certificate Service Console
- Multi-Year SSL Certificate and Automatic Review
- Notice on Stopping the Issuance of 2-Year SSL Certificates by CAs Starting from September 1, 2020
- Announcement on Stop Using the Symantec SSL Certificate Name After 30 April 2020
- Notice on Certificate Revocation Due to Private Key Compromises
- Notice on Application Limits for DV SSL Certificates
- Notice on Adjustment of Free SSL Certificates Policy
- Let's Encrypt Root Certificate Expired on September 30, 2021
- Product Introduction
- Purchase Guide
- Getting Started
- Certificate Application
- Domain Ownership Validation
- Operation Guide
- Certificate Installation
- Installing an SSL Certificate on a Tencent Cloud Service
- Installation of International Standard Certificates
- Installing an SSL Certificate on an Nginx Server
- Installing an SSL Certificate on an Apache Server (Linux)
- Installing an SSL Certificate on an Apache Server (Windows)
- Installing an SSL Certificate (JKS Format) on a Tomcat Server (Linux)
- Installing an SSL Certificate (JKS Format) on a Tomcat Server
- Installing an SSL Certificate (PFX Format) on a Tomcat Server
- Installing an SSL Certificate on a GlassFish Server
- Installing an SSL Certificate on a JBoss Server
- Installing an SSL Certificate on a Jetty Server
- Installing an SSL Certificate on an IIS Server
- Installing a Certificate on WebLogic Servers
- Selecting an Installation Type for an SSL Certificate
- Certificate Management
- Instructions on SSL Certificate Auto-Renewal
- Certificate Hosting
- Uploading (Hosting) an SSL Certificate
- Reminding Reviewers to Review an SSL Certificate Application
- Revoking an SSL Certificate
- Deleting an SSL Certificate
- Reissuing an SSL Certificate
- Ignoring SSL Certificate Notifications
- Customizing SSL Certificate Expiration Notifications
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Certificate APIs
- CancelAuditCertificate
- ApplyCertificate
- CreateCertificate
- DescribeHostUpdateRecord
- DescribeHostUpdateRecordDetail
- ModifyCertificateResubmit
- UpdateCertificateInstance
- UpdateCertificateRecordRetry
- UpdateCertificateRecordRollback
- CreateCertificateBindResourceSyncTask
- DescribeCertificateBindResourceTaskDetail
- DescribeCertificateBindResourceTaskResult
- UploadConfirmLetter
- DescribeHostTeoInstanceList
- UploadCertificate
- SubmitCertificateInformation
- ReplaceCertificate
- ModifyCertificateProject
- ModifyCertificateAlias
- DownloadCertificate
- DescribeCertificates
- DescribeCertificateOperateLogs
- DescribeCertificateDetail
- DescribeCertificate
- DeleteCertificate
- CommitCertificateInformation
- CancelCertificateOrder
- CSR APIs
- Data Types
- Error Codes
- Practical Tutorial
- Automatic Solution for Implementing and Issuing Multi-Year Certificates and Binding Resources
- Apple ATS Server Configuration
- Quickly Applying for a Free SSL Certificate via DNSPod
- Enabling Tencent Cloud DDNS and Installing Free Certificates for Synology NAS
- Batch Applying for and Downloading Free Certificates Using Python-based API Calls
- Profile Management
- Troubleshooting
- Domain Validation Failed
- Domain Security Review Failed
- Website Inaccessible After an SSL Certificate is Deployed
- 404 Error After the SSL Certificate is Deployed on IIS
- “Your Connection is Not Secure” is Displayed After the SSL Certificate is Installed
- Message Indicating Parsing Failure Is Displayed When a Certificate Is Uploaded
- Automatic DNS Validation Failed for a Domain Hosted with www.west.cn
- Host Name Field Cannot Be Edited in IIS Manager When Type Is Set to https
- Message Indicating Intermediate Certificates Missing in Chain Is Displayed When a Free SSL Certificate Is Deployed on IIS
- FAQs
- SSL Certificate Selection
- SSL Certificate Application
- Quota of Free SSL Certificates
- How to Fill In the Domains Bound to an SSL Certificate During the Application?
- Wildcard SSL Certificates
- Why Does the Order Status Not Changed After a Notification Email Is Received from a CA?
- Can the TXT Records for Domain Name Resolution Configured in the Certificate Be Deleted?
- What Is CSR?
- How Do I Make a CSR File?
- What Is Private Key Password?
- Forgot Your Private Key Password?
- Can an SSL Certificate Be Revoked?
- What are the differences between RSA and ECC?
- What Should I Do If the Console Prompts That "The Certificate Is Bound to Tencent Cloud Resources and Cannot Be Revoked" When I Submit an SSL Certificate Revocation Application?
- What’s the Difference Between Certificate Reissue and Reapplication?
- Which SSL Certificate Types Are Supported for Mini Programs?
- SSL Certificate Management
- SSL Certificate Installation
- What Should I Do If the Host Name Field Is Uneditable in the IIS Manager?
- How Do I Enable Port 443 for a Server?
- Why Does the Website Prompt “Connection Is Untrusted"?
- How Do I Install OpenSSL?
- How Can I Set TLS Versions for SSL Certificates?
- How Can I Combine an SSL Certificate Chain?
- Can Tencent Cloud SSL Certificates Be Used for WebSocket?
- How Do I Enable the IIS Service?
- What Should I Do If I Am Prompted That HTTPS Is Not Secure After Reapplying for Deployment upon Expiration of the SSL Certificate?
- SSL Certificate Region
- SSL Certificate Review
- SSL Certificate Taking Effect
- Is the Original SSL Certificate Still Valid After the Server IP Address Is Changed?
- How Do I Check in a Browser Whether an SSL Certificate Has Taken Effect?
- What Should I Do If GlobalSign Certificates Are Not Supported in Windows 7?
- What Should I Do If the Issue of a Free SSL Certificate Takes Too Long or Failed?
- SSL Certificate Billing and Purchase
- SSL Certificate Validity Period
- Related Agreement
- Contact Us
- Glossary
- Release Notes
- Announcements
- Price Change to DigiCert SSL Certificates
- TrustAsia Root Certificate Update
- Domain Validation Policy Update
- SSL Certificate Service Console
- Multi-Year SSL Certificate and Automatic Review
- Notice on Stopping the Issuance of 2-Year SSL Certificates by CAs Starting from September 1, 2020
- Announcement on Stop Using the Symantec SSL Certificate Name After 30 April 2020
- Notice on Certificate Revocation Due to Private Key Compromises
- Notice on Application Limits for DV SSL Certificates
- Notice on Adjustment of Free SSL Certificates Policy
- Let's Encrypt Root Certificate Expired on September 30, 2021
- Product Introduction
- Purchase Guide
- Getting Started
- Certificate Application
- Domain Ownership Validation
- Operation Guide
- Certificate Installation
- Installing an SSL Certificate on a Tencent Cloud Service
- Installation of International Standard Certificates
- Installing an SSL Certificate on an Nginx Server
- Installing an SSL Certificate on an Apache Server (Linux)
- Installing an SSL Certificate on an Apache Server (Windows)
- Installing an SSL Certificate (JKS Format) on a Tomcat Server (Linux)
- Installing an SSL Certificate (JKS Format) on a Tomcat Server
- Installing an SSL Certificate (PFX Format) on a Tomcat Server
- Installing an SSL Certificate on a GlassFish Server
- Installing an SSL Certificate on a JBoss Server
- Installing an SSL Certificate on a Jetty Server
- Installing an SSL Certificate on an IIS Server
- Installing a Certificate on WebLogic Servers
- Selecting an Installation Type for an SSL Certificate
- Certificate Management
- Instructions on SSL Certificate Auto-Renewal
- Certificate Hosting
- Uploading (Hosting) an SSL Certificate
- Reminding Reviewers to Review an SSL Certificate Application
- Revoking an SSL Certificate
- Deleting an SSL Certificate
- Reissuing an SSL Certificate
- Ignoring SSL Certificate Notifications
- Customizing SSL Certificate Expiration Notifications
- API Documentation
- History
- Introduction
- API Category
- Making API Requests
- Certificate APIs
- CancelAuditCertificate
- ApplyCertificate
- CreateCertificate
- DescribeHostUpdateRecord
- DescribeHostUpdateRecordDetail
- ModifyCertificateResubmit
- UpdateCertificateInstance
- UpdateCertificateRecordRetry
- UpdateCertificateRecordRollback
- CreateCertificateBindResourceSyncTask
- DescribeCertificateBindResourceTaskDetail
- DescribeCertificateBindResourceTaskResult
- UploadConfirmLetter
- DescribeHostTeoInstanceList
- UploadCertificate
- SubmitCertificateInformation
- ReplaceCertificate
- ModifyCertificateProject
- ModifyCertificateAlias
- DownloadCertificate
- DescribeCertificates
- DescribeCertificateOperateLogs
- DescribeCertificateDetail
- DescribeCertificate
- DeleteCertificate
- CommitCertificateInformation
- CancelCertificateOrder
- CSR APIs
- Data Types
- Error Codes
- Practical Tutorial
- Automatic Solution for Implementing and Issuing Multi-Year Certificates and Binding Resources
- Apple ATS Server Configuration
- Quickly Applying for a Free SSL Certificate via DNSPod
- Enabling Tencent Cloud DDNS and Installing Free Certificates for Synology NAS
- Batch Applying for and Downloading Free Certificates Using Python-based API Calls
- Profile Management
- Troubleshooting
- Domain Validation Failed
- Domain Security Review Failed
- Website Inaccessible After an SSL Certificate is Deployed
- 404 Error After the SSL Certificate is Deployed on IIS
- “Your Connection is Not Secure” is Displayed After the SSL Certificate is Installed
- Message Indicating Parsing Failure Is Displayed When a Certificate Is Uploaded
- Automatic DNS Validation Failed for a Domain Hosted with www.west.cn
- Host Name Field Cannot Be Edited in IIS Manager When Type Is Set to https
- Message Indicating Intermediate Certificates Missing in Chain Is Displayed When a Free SSL Certificate Is Deployed on IIS
- FAQs
- SSL Certificate Selection
- SSL Certificate Application
- Quota of Free SSL Certificates
- How to Fill In the Domains Bound to an SSL Certificate During the Application?
- Wildcard SSL Certificates
- Why Does the Order Status Not Changed After a Notification Email Is Received from a CA?
- Can the TXT Records for Domain Name Resolution Configured in the Certificate Be Deleted?
- What Is CSR?
- How Do I Make a CSR File?
- What Is Private Key Password?
- Forgot Your Private Key Password?
- Can an SSL Certificate Be Revoked?
- What are the differences between RSA and ECC?
- What Should I Do If the Console Prompts That "The Certificate Is Bound to Tencent Cloud Resources and Cannot Be Revoked" When I Submit an SSL Certificate Revocation Application?
- What’s the Difference Between Certificate Reissue and Reapplication?
- Which SSL Certificate Types Are Supported for Mini Programs?
- SSL Certificate Management
- SSL Certificate Installation
- What Should I Do If the Host Name Field Is Uneditable in the IIS Manager?
- How Do I Enable Port 443 for a Server?
- Why Does the Website Prompt “Connection Is Untrusted"?
- How Do I Install OpenSSL?
- How Can I Set TLS Versions for SSL Certificates?
- How Can I Combine an SSL Certificate Chain?
- Can Tencent Cloud SSL Certificates Be Used for WebSocket?
- How Do I Enable the IIS Service?
- What Should I Do If I Am Prompted That HTTPS Is Not Secure After Reapplying for Deployment upon Expiration of the SSL Certificate?
- SSL Certificate Region
- SSL Certificate Review
- SSL Certificate Taking Effect
- Is the Original SSL Certificate Still Valid After the Server IP Address Is Changed?
- How Do I Check in a Browser Whether an SSL Certificate Has Taken Effect?
- What Should I Do If GlobalSign Certificates Are Not Supported in Windows 7?
- What Should I Do If the Issue of a Free SSL Certificate Takes Too Long or Failed?
- SSL Certificate Billing and Purchase
- SSL Certificate Validity Period
- Related Agreement
- Contact Us
- Glossary
SSL certificate
Secure Sockets Layer (SSL) is a security protocol designed to ensure the security and data integrity of internet communication. Based on the SSL protocol, an SSL certificate can be installed on a server to achieve encrypted data transmission.
A certificate authority (CA) is a third-party authority that verifies the validity of public keys. It is responsible for specifying policies and procedures to verify users' identities, signing SSL certificates, as well as validating the identities of certificate holders and the ownership of public keys. The CA issues an SSL certificate to each user using the public key. An SSL certificate is used to certify that the individuals/businesses listed in the certificate lawfully own the public key listed in the certificate. Digital signatures from a CA can prevent certificates from being forged and tampered with.
An SSL certificate actually represents CA’s verification of the public key, and contains digital signing authority information, the public key user information, the public key, the authority signature, and an expiration date.
CA
Hypertext Transfer Protocol Secure
Hypertext Transfer Protocol Secure (HTTPS), also known as HTTP over TLS, HTTP over SSL, or HTTP Secure, is a secure network transfer protocol. On a computer network, HTTPS implements communication through the HTTP protocol but uses SSL/TLS to encrypt packets.
CSR
HTTPS
Certificate authority
A certificate authority (CA) issues and manages digital certificates, and is responsible for verifying the validity of public keys in the public key system as a trusted third party in e-commerce transactions.
Private key
SSL certificates are developed based on public-key cryptography, which encrypts information with digital keys so that the information can only be read by the intended recipients after decryption.
A key pair consists of a public key and a private key. The public key may be publicly distributed by a user, while the private key is kept by the user. Information encrypted with the public key can be decrypted only with the corresponding private key, and vice versa.
An SSL certificate actually represents CA’s verification of the public key, and contains digital signing authority information, the public key user information, the public key, authority signature, and an expiration date.
Certificate signing request
To obtain an SSL certificate, you need to generate a certificate signing request (CSR) file and submit it to a CA. A CSR includes a public key and a distinguished name. A CSR is usually generated by a web server, and a public and private key pair for encryption and decryption is created simultaneously.
Yes
No
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