ssd md5 hash result

[ipfreak]

hi all:

i have a few questions regarding ssd.

1) for ssd secure erase, the end result of this operation is a md5 hash. should this number be always the same? i meant before secure erase and after secure erase.
2) how this number is calculated? obviously, the sizes are factors but what vendors? i noticed that different vendors, even with the same size ssd, the end results (md5 hash) are also different.

just trying to understand how those md5 hash numbers are determined.

thanks.

_dave

 

[ollpu]

The MD5 hashing method is used commonly:
1. For encrypting passwords in web sites.
2. For confirming that you have the same executable file as they do on the download site, in case something got in the way, maybe a virus.

In your case, I believe that it sums up the whole contents of the SSD into the MD5 hash. This is only of use if you believe you are having issues with your hard drive.

Answering your questions:
1) The hash will change, don't worry.
2) As I already explained, it sums up your hard drive's contents (If I am not completely mistaken) into the hash. If you want info on how, and why MD5 hashes are used, you can read about it on Wikipedia, for example: https://en.wikipedia.org/wiki/MD5

Bitcoin and other cryptocurrencies are also based on other cryptographic hashing methods.

 

[ipfreak]

The MD5 hashing method is used commonly:
1. For encrypting passwords in web sites.
2. For confirming that you have the same executable file as they do on the download site, in case something got in the way, maybe a virus.

In your case, I believe that it sums up the whole contents of the SSD into the MD5 hash. This is only of use if you believe you are having issues with your hard drive.

Answering your questions:
1) The hash will change, don't worry.
2) As I already explained, it sums up your hard drive's contents (If I am not completely mistaken) into the hash. If you want info on how, and why MD5 hashes are used, you can read about it on Wikipedia, for example: https://en.wikipedia.org/wiki/MD5

Bitcoin and other cryptocurrencies are also based on other cryptographic hashing methods.

 

[ipfreak]

thanks ollpu:

so did you mean the hash values change when the contents on the same ssd changes?

The MD5 hashing method is used commonly:
1. For encrypting passwords in web sites.
2. For confirming that you have the same executable file as they do on the download site, in case something got in the way, maybe a virus.

In your case, I believe that it sums up the whole contents of the SSD into the MD5 hash. This is only of use if you believe you are having issues with your hard drive.

Answering your questions:
1) The hash will change, don't worry.
2) As I already explained, it sums up your hard drive's contents (If I am not completely mistaken) into the hash. If you want info on how, and why MD5 hashes are used, you can read about it on Wikipedia, for example: https://en.wikipedia.org/wiki/MD5

Bitcoin and other cryptocurrencies are also based on other cryptographic hashing methods.

 

[ollpu]

The MD5 hashing method is used commonly:
1. For encrypting passwords in web sites.
2. For confirming that you have the same executable file as they do on the download site, in case something got in the way, maybe a virus.

In your case, I believe that it sums up the whole contents of the SSD into the MD5 hash. This is only of use if you believe you are having issues with your hard drive.

Answering your questions:
1) The hash will change, don't worry.
2) As I already explained, it sums up your hard drive's contents (If I am not completely mistaken) into the hash. If you want info on how, and why MD5 hashes are used, you can read about it on Wikipedia, for example: https://en.wikipedia.org/wiki/MD5

Bitcoin and other cryptocurrencies are also based on other cryptographic hashing methods.

thanks ollpu:

so did you mean the hash values change when the contents on the same ssd changes?

The MD5 hashing method is used commonly:
1. For encrypting passwords in web sites.
2. For confirming that you have the same executable file as they do on the download site, in case something got in the way, maybe a virus.

In your case, I believe that it sums up the whole contents of the SSD into the MD5 hash. This is only of use if you believe you are having issues with your hard drive.

Answering your questions:
1) The hash will change, don't worry.
2) As I already explained, it sums up your hard drive's contents (If I am not completely mistaken) into the hash. If you want info on how, and why MD5 hashes are used, you can read about it on Wikipedia, for example: https://en.wikipedia.org/wiki/MD5

Bitcoin and other cryptocurrencies are also based on other cryptographic hashing methods.

Yes.

 

[ipfreak]

thanks.

The MD5 hashing method is used commonly:
1. For encrypting passwords in web sites.
2. For confirming that you have the same executable file as they do on the download site, in case something got in the way, maybe a virus.

In your case, I believe that it sums up the whole contents of the SSD into the MD5 hash. This is only of use if you believe you are having issues with your hard drive.

Answering your questions:
1) The hash will change, don't worry.
2) As I already explained, it sums up your hard drive's contents (If I am not completely mistaken) into the hash. If you want info on how, and why MD5 hashes are used, you can read about it on Wikipedia, for example: https://en.wikipedia.org/wiki/MD5

Bitcoin and other cryptocurrencies are also based on other cryptographic hashing methods.

thanks ollpu:

so did you mean the hash values change when the contents on the same ssd changes?

The MD5 hashing method is used commonly:
1. For encrypting passwords in web sites.
2. For confirming that you have the same executable file as they do on the download site, in case something got in the way, maybe a virus.

In your case, I believe that it sums up the whole contents of the SSD into the MD5 hash. This is only of use if you believe you are having issues with your hard drive.

Answering your questions:
1) The hash will change, don't worry.
2) As I already explained, it sums up your hard drive's contents (If I am not completely mistaken) into the hash. If you want info on how, and why MD5 hashes are used, you can read about it on Wikipedia, for example: https://en.wikipedia.org/wiki/MD5

Bitcoin and other cryptocurrencies are also based on other cryptographic hashing methods.

Yes.