How to choose an SSL certificate based on encryption strength?

GWORG recommends that you choose according to the encryption strength and enforce 128 256-bit encryption: for the installation of SLL certificates, which involves capital transactions, confidential information, privacy information transmission, etc., these ** have high security requirements, and it is necessary to choose an SSL certificate that supports mandatory 128 256-bit encryption, which can effectively avoid the risk caused by the user's browser not being upgraded.

Adaptive encryption: Depending on your needs and risk assessment, you can choose an affordable adaptive encryption SSL certificate. It is not recommended to use it if it involves important data such as capital transactions and confidential data transmission.

According to the encryption strength, there are three types of HTTPS certificates:

DV HTTPS certificate: An HTTPS certificate that can be issued in just a few minutes, only needs to verify the ownership of the domain name, and does not need to manually verify the real identity of the applicant, and the encryption strength is low.

OV-type HTTPS certificate: It is necessary to verify the domain name ownership and enterprise identity information to prove that the applicant is a legitimate and authentic entity, which is generally issued within 1-2 working days, and the encryption strength is higher than that of DV certificates.

EV HTTPS certificate: In addition to verifying domain ownership and enterprise identity information, extended verification is also required, such as: Dun & Bradstreet, lawyer opinion letter, etc., the certificate is generally issued within 1-3 working days, with the highest encryption strength and the most stringent review.

SSL certificates can be divided into DV SSL certificates, OV SSL certificates, and EV SSL certificates according to the verification security level, and their security levels are increased sequentially.

If you are a personal or blogger, you can choose a DV SSL certificate to meet your security needs.

If you're a small or medium-sized business**, you'll need to choose an OV SSL certificate to meet your security needs.

If you are banking and finance, or large-scale e-commerce**, you need to choose an EV SSL certificate to meet your security requirements.

The function and purpose are the same is to encrypt and better protect the platform, SSL secure hash algorithm, is the digital signature algorithm standard, so no matter how many certificates you register, the algorithm is basically the same!

To apply for an SSL certificate in order to keep more browsers accessible in consideration of browser compatibility, the encryption algorithm is usually adopted: RSA 2048 bits, and the signature algorithm is SHA256withrsa, which is recognized as being used, and this algorithm is also used!

RSA encryption algorithm: The public key is used to encrypt the data, and the private key is used to decrypt the data.

RSA Signature Algorithm: In the signature algorithm, the private key is used to sign the data, and the public key is used to verify the signature.

Encryption algorithms are divided into two categories: 1. Symmetric encryption algorithms 2. Asymmetric encryption algorithms.

<> due to the rapid development of computing power, from the perspective of security, many encryption methods have been added to support SHA256 Withrsa on the basis of the original SHA1WITHRSA signature algorithm. The proposed algorithm has stronger security capabilities than SHA1Withrsa in the summary algorithm. Currently, the SHA1Withrsa signature algorithm will continue to be supported, but for the security of your application, it is strongly recommended to use the SHA256Withrsa signature algorithm.

Asymmetric encryption algorithms: RSA, DSA DSS

Symmetric encryption algorithms: AES, RC4, 3DES

Hash algorithm: MD5, SHA1, SHA256, <>

Use the PHP OpenSSL X509 parse function to parse the user certificate and the root certificate, and compare the information such as the authority of the user certificate and the root certificate, if it is the same, it means that the user certificate is issued by the root certificate, that is, it is a valid certificate, otherwise it is not legal.

What should you do first about algorithms and mechanisms? Although I don't know your intentions, if you want to make an SSL digital certificate, you can find Nice Box to do it, which is cheap and can save trouble.

It is true that the client and server do not support the general SSL protocol or cipher suite.

HTTPS has gained the most widespread support as one of the best practices for site security. However, in the actual production process, the connection anomaly caused by the failure of the TLS SSL handshake is still very common.

The main function of HTTPS is to create a secure channel based on the TLS SSL protocol on an insecure network to provide a reasonable degree of protection against eavesdropping and man-in-the-middle attacks. Solution:

1. Replace the certificate issued by another CA organization to ensure that the CA root certificate is trusted by default on a specific device.

2. Manually install the CA root certificate and intermediate certificate on the affected device and configure them as trust status.

What encryption algorithms does the SSL protocol support?

1. RSARSA, as an international general algorithm, is based on the assumption of large integer factorization. Assuming that there is no effective algorithm for integer factorization, it is considered that complete decryption of RSA ciphertext is not feasible. A user creates and publishes the sum of the product of two large prime numbers of RSA as a secondary value for their public key.

Key elements must be kept confidential. Everyone can encrypt information with a public key, but only those who understand the key elements can decode the information. Almost every SSL certificate now supports the RSA algorithm.

2. The ECCECC algorithm was put into use in 2004, and the ECC algorithm is based on a finite field, and the elliptic curve cryptography relies on the algebraic structure of the elliptic curve. It is unrealistic to assume that the discrete logarithm of random elliptic curve elements is found to be related to a commonly known basis point. Compared with the RSA algorithm, the ECC algorithm has the advantage of a smaller key, which improves speed and security.

The downside is that not all services and applications are interoperable with ECC-based SSL certificates.

The ECC algorithm has become the mainstream of the new generation of algorithms, with faster encryption speed, higher efficiency, more security, and stronger resistance to attacks, but it is not as extensive as RSA in terms of compatibility.

The security protocol is https, which means that the interactive data you interact with when accessing this ** is encrypted and transmitted, and the data will not be stolen or tampered with. The HTTP protocol is transmitted in clear text.

The security protocol can be used to ensure the safe transmission and processing of secret information in the computer network information system, and to ensure that network users can use the cryptographic resources in the system safely, conveniently and transparently. The application of security protocols in the financial system, business system, government system, military system and social life is becoming more and more common.

However, the security analysis and verification of security protocols is still an open question. In the actual society, there are many insecure protocols that have been used by people for a long time as the right ones.

If it is used in cryptographic equipment in the military field, it will directly endanger the security of military secrets and cause immeasurable losses. This requires sufficient analysis and verification of the security protocol to determine whether it meets the expected security objectives.

The SSL protocol uses encryption and authentication to ensure: privacy. The data to be exchanged between the client and the server is encrypted, so only the intended receiver can read it. SSL uses public key cryptography as a security mechanism for distributing keys between the server and the client.

There is no doubt that data transmitted using the SSL protocol is encrypted.

When a normal SSL certificate is applied, the browser will display a security lock mark, indicating that the consumer** has adopted encrypted link technology. The biggest feature of the Extended Validation (EV) SSL certificate that distinguishes it from ordinary certificates is the green address bar, which makes it easier for customers to identify their real identity when they log in. In addition, the enterprise name and SSL certificate authority information will be dynamically displayed on the right side of the address bar, and the scammer** cannot obtain such SSL certificates at all.

It is recommended that you apply for an Extended Validation (EV) SSL certificate, which is now generally applied for by companies as well.

GlobalSign SSL certificates include: Domain Name Certificate DVSSL, Enterprise Certificate OVSSL and Enhanced Certificate EVSSL all have the advantages of strong compatibility, high brand trust, perfect solution, wide visibility and global trustworthiness. It is also the only CA (Certificate Authority) certificate granting foreign company with Shanghai as its business base and deep roots in the mainland market, equipped with a full range of marketing sales, marketing cooperation, certificate technical support and other teams to provide perfect services at any time.

It is necessary to deploy SSL certificates.

The high rate of web page visits prevents ** from being hijacked, and the common ones are mobile ad hijacking and traffic hijacking.

**The source code and system are protected by the SSL protocol on the whole site.

It is easy to be trusted, and it increases trust and image.

Help users identify phishing** and reduce unnecessary losses.

Through the HTTP vs HTTPS comparison test, it is shown that the new generation of HTTP2 protocol using SSL certificates has a much faster access speed than using the HTTP protocol.

Deploy SSL solution: You can find GWORG in ** and select the SSL certificate to deploy it to the server to implement HTTPS.

Of course, it can prevent illegal theft, very good, our company uses the SSL certificate of Wosign, which is easy to use**discount, you can go to their** to see.