Online SHA1 Hash Generator

I know this question was already asked here. But I just wanted to know:

When I hash, for example, a string1 with the value password, and then a string2, with the same value, will the hashes be the same?

If yes, does that mean that SHA1 can be easily decrypted? Just google "SHA1 dehasher" and you'll find loads of websites that do that. I even tried it. Hashed password and then dehashed it, and same result.

Am I wrong somewhere?

I am trying to get the same result as this online API service produces.

By entering key as the application key, and secret as the secret produces the following URL:

http://webservices.esd.org.uk/organisations/barrowbc?ApplicationKey=key&Signature=YXWJsGSKnLcENW1vm30EYObbCsA=

I have tried producing the same signature using the following code:

import hmac    import urllibimport base64from hashlib import sha1def sign_url(url,key,secret):    url = url + 'ApplicationKey=' + key    signature = hmac.new(secret,url,sha1).digest().encode("base64")     signature = '&Signature=' + signature    url = url + signature    print(url)sign_url('http://webservices.esd.org.uk/organisations/barrowbc','key','secret')

but this produces:

http://webservices.esd.org.uk/organisations/barrowbcApplicationKey=key&Signature=W//jgV+xdSbTBG6+i1TCGN/Kbsk=

The expected signature is

YXWJsGSKnLcENW1vm30EYObbCsA=

but my code outputs

W//jgV+xdSbTBG6+i1TCGN/Kbsk=

i have problem that i dont know how to solve!!i try to fix it almost a week.

i have application in google play, and i try to do google sign in authentication.

the problem is in the SHA-1.

when i use the keytool command on the keystore file to get SHA-1 relese i get something that start with 28.

when i do intagretion in firebase to link to Google Play,it take another SHA-1 that start with B0, like the image below:

there is anyway to change the SHA-1 in the google play application? to solve this?

in the app folder i have the file google-service.json and i put the correct SHA-1, the one who start with 28, but it didnt help, when i do line its still take the SHA-1 who start with B0..

i will be thankfull for any help!

thanks!

EDITi want to make google sign in and get ApiExeption 10. this is because the SHA-1.i want to change in the console play like the image below:

with what i read in some other posts, i see that i cant do it.

there another way still make google sign in with my application?i have both 28 and B0 in firebase, google-service.json and google devloper API.

maybe i dont know which one i need to put in this code:

// Configure Google Sign InGoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)        .requestIdToken(*28 or B0?????????*)        .requestEmail()        .build();

I'm making a php login, and I'm trying to decide whether to use SHA1 or Md5, or SHA256 which I read about in another stackoverflow article. Are any of them more secure than others? For SHA1/256, do I still use a salt?

Also, is this a secure way to store the password as a hash in mysql?

function createSalt(){    $string = md5(uniqid(rand(), true));    return substr($string, 0, 3);}$salt = createSalt();$hash = sha1($salt . $hash);

How can I get the sha-1 fingerprint, as here:

// A.T. C.     { { { 0xf9, 0xb5, 0xb6, 0x32, 0x45, 0x5f, 0x9c, 0xbe, 0xec, 0x57,    0x5f, 0x80, 0xdc, 0xe9, 0x6e, 0x2c, 0xc7, 0xb2, 0x78, 0xb7 } },{"1.3.6.1.4.1.34697.2.1", ""},  },

from Chromium source (net/cert/ev_root_ca_metadata.cc). If the Crypto?

When I try, I always get this

04:A0:56:A9:87:64:BB:DC:96:BF:6D:B0:49:FA:80:81:ED:06:8A:1E

Which program can I use for this and what is the name of the command, to get this in crypto?

EDIT

I will add a certificate as EV in firefox / chromium.